From 7428be4a86a8ad3acaa1b5859442403f797f9042 Mon Sep 17 00:00:00 2001
From: Mark Banner <standard8@mozilla.com>
Date: Wed, 3 Aug 2022 11:16:20 +0000
Subject: [PATCH] Bug 1782008 - Remove now unnecessary .eslintrc.js files.
 r=webcompat-reviewers,extension-reviewers,media-playback-reviewers,pip-reviewers,denschub,rpl,alwu,mossop

Differential Revision: https://phabricator.services.mozilla.com/D152736
---
 accessible/tests/crashtests/.eslintrc.js            |  7 -------
 browser/base/content/test/about/.eslintrc.js        |  5 -----
 browser/base/content/test/alerts/.eslintrc.js       |  5 -----
 browser/base/content/test/backforward/.eslintrc.js  |  5 -----
 browser/base/content/test/caps/.eslintrc.js         |  5 -----
 .../base/content/test/captivePortal/.eslintrc.js    |  5 -----
 browser/base/content/test/contentTheme/.eslintrc.js |  5 -----
 browser/base/content/test/contextMenu/.eslintrc.js  |  5 -----
 browser/base/content/test/favicons/.eslintrc.js     |  5 -----
 browser/base/content/test/forms/.eslintrc.js        |  5 -----
 browser/base/content/test/fullscreen/.eslintrc.js   |  5 -----
 browser/base/content/test/general/.eslintrc.js      |  5 -----
 browser/base/content/test/gesture/.eslintrc.js      |  5 -----
 .../content/test/historySwipeAnimation/.eslintrc.js |  5 -----
 browser/base/content/test/keyboard/.eslintrc.js     |  5 -----
 browser/base/content/test/menubar/.eslintrc.js      |  5 -----
 browser/base/content/test/metaTags/.eslintrc.js     |  5 -----
 .../base/content/test/notificationbox/.eslintrc.js  |  5 -----
 browser/base/content/test/outOfProcess/.eslintrc.js |  5 -----
 browser/base/content/test/pageActions/.eslintrc.js  |  5 -----
 browser/base/content/test/pageStyle/.eslintrc.js    |  5 -----
 browser/base/content/test/pageinfo/.eslintrc.js     |  5 -----
 browser/base/content/test/performance/.eslintrc.js  |  5 -----
 browser/base/content/test/permissions/.eslintrc.js  |  5 -----
 browser/base/content/test/plugins/.eslintrc.js      |  5 -----
 .../content/test/popupNotifications/.eslintrc.js    |  5 -----
 browser/base/content/test/popups/.eslintrc.js       |  5 -----
 .../base/content/test/protectionsUI/.eslintrc.js    |  5 -----
 browser/base/content/test/referrer/.eslintrc.js     |  5 -----
 browser/base/content/test/sanitize/.eslintrc.js     |  5 -----
 browser/base/content/test/sidebar/.eslintrc.js      |  5 -----
 browser/base/content/test/siteIdentity/.eslintrc.js |  5 -----
 browser/base/content/test/startup/.eslintrc.js      |  5 -----
 browser/base/content/test/static/.eslintrc.js       |  5 -----
 browser/base/content/test/statuspanel/.eslintrc.js  |  5 -----
 browser/base/content/test/sync/.eslintrc.js         |  5 -----
 .../content/test/tabMediaIndicator/.eslintrc.js     |  8 --------
 browser/base/content/test/tabPrompts/.eslintrc.js   |  5 -----
 browser/base/content/test/tabcrashed/.eslintrc.js   |  5 -----
 browser/base/content/test/tabdialogs/.eslintrc.js   |  5 -----
 browser/base/content/test/tabs/.eslintrc.js         |  5 -----
 browser/base/content/test/touch/.eslintrc.js        |  5 -----
 .../base/content/test/utilityOverlay/.eslintrc.js   |  5 -----
 browser/base/content/test/webrtc/.eslintrc.js       |  5 -----
 browser/base/content/test/zoom/.eslintrc.js         |  5 -----
 browser/components/customizableui/test/.eslintrc.js |  5 -----
 browser/components/pocket/test/.eslintrc.js         |  5 -----
 browser/components/preferences/tests/.eslintrc.js   |  5 -----
 .../components/protocolhandler/test/.eslintrc.js    |  5 -----
 .../safebrowsing/content/test/.eslintrc.js          |  5 -----
 browser/components/sessionstore/test/.eslintrc.js   |  5 -----
 browser/components/shell/test/.eslintrc.js          |  5 -----
 browser/components/touchbar/tests/.eslintrc.js      |  9 ---------
 browser/components/translation/test/.eslintrc.js    |  5 -----
 browser/components/uitour/test/.eslintrc.js         |  5 -----
 .../report-site-issue/test/browser/.eslintrc.js     |  5 -----
 browser/tools/mozscreenshots/.eslintrc.js           |  9 ---------
 caps/tests/mochitest/.eslintrc.js                   |  5 -----
 .../client/debugger/test/mochitest/.eslintrc.js     | 11 -----------
 devtools/client/dom/test/.eslintrc.js               |  7 -------
 .../framework/browser-toolbox/test/.eslintrc.js     |  7 -------
 devtools/client/framework/test/.eslintrc.js         |  7 -------
 .../client/inspector/animation/test/.eslintrc.js    |  7 -------
 .../client/inspector/boxmodel/test/.eslintrc.js     |  7 -------
 devtools/client/inspector/changes/test/.eslintrc.js |  7 -------
 .../client/inspector/computed/test/.eslintrc.js     |  7 -------
 .../client/inspector/extensions/test/.eslintrc.js   |  7 -------
 devtools/client/inspector/flexbox/test/.eslintrc.js |  7 -------
 devtools/client/inspector/fonts/test/.eslintrc.js   |  7 -------
 devtools/client/inspector/grids/test/.eslintrc.js   |  7 -------
 devtools/client/inspector/markup/test/.eslintrc.js  |  7 -------
 devtools/client/inspector/rules/test/.eslintrc.js   |  7 -------
 devtools/client/inspector/shared/test/.eslintrc.js  |  7 -------
 devtools/client/inspector/test/.eslintrc.js         |  7 -------
 devtools/client/jsonview/test/.eslintrc.js          |  7 -------
 devtools/client/memory/test/browser/.eslintrc.js    |  8 --------
 .../client/netmonitor/src/har/test/.eslintrc.js     |  7 -------
 .../client/shared/sourceeditor/test/.eslintrc.js    |  7 -------
 devtools/client/shared/test/.eslintrc.js            |  7 -------
 devtools/client/storage/test/.eslintrc.js           |  7 -------
 devtools/client/styleeditor/test/.eslintrc.js       |  7 -------
 .../commands/inspected-window/tests/.eslintrc.js    |  7 -------
 .../shared/commands/inspector/tests/.eslintrc.js    |  7 -------
 .../shared/commands/resource/tests/.eslintrc.js     |  7 -------
 devtools/shared/commands/script/tests/.eslintrc.js  |  7 -------
 .../target-configuration/tests/.eslintrc.js         |  7 -------
 devtools/shared/commands/target/tests/.eslintrc.js  |  7 -------
 .../thread-configuration/tests/.eslintrc.js         |  7 -------
 devtools/shared/security/tests/chrome/.eslintrc.js  |  6 ------
 devtools/shared/test-helpers/.eslintrc.js           | 11 -----------
 devtools/shared/webconsole/test/chrome/.eslintrc.js |  6 ------
 docshell/test/iframesandbox/.eslintrc.js            |  5 -----
 docshell/test/navigation/.eslintrc.js               |  5 -----
 dom/abort/tests/.eslintrc.js                        | 13 -------------
 dom/animation/test/mozilla/.eslintrc.js             |  5 -----
 dom/animation/test/style/.eslintrc.js               |  5 -----
 dom/battery/test/.eslintrc.js                       |  5 -----
 dom/bindings/test/.eslintrc.js                      |  5 -----
 dom/broadcastchannel/tests/.eslintrc.js             |  5 -----
 dom/canvas/test/.eslintrc.js                        |  5 -----
 dom/console/tests/.eslintrc.js                      |  5 -----
 dom/credentialmanagement/tests/.eslintrc.js         |  6 ------
 dom/crypto/test/.eslintrc.js                        |  5 -----
 dom/encoding/test/.eslintrc.js                      |  5 -----
 dom/events/test/.eslintrc.js                        |  9 ---------
 dom/fetch/tests/.eslintrc.js                        |  5 -----
 dom/file/tests/.eslintrc.js                         |  5 -----
 dom/filesystem/compat/tests/.eslintrc.js            |  5 -----
 dom/filesystem/tests/.eslintrc.js                   |  5 -----
 dom/flex/test/.eslintrc.js                          |  5 -----
 dom/grid/test/.eslintrc.js                          |  5 -----
 dom/html/test/.eslintrc.js                          |  9 ---------
 dom/html/test/forms/.eslintrc.js                    |  5 -----
 dom/ipc/tests/.eslintrc.js                          |  9 ---------
 dom/jsurl/test/.eslintrc.js                         |  5 -----
 dom/l10n/tests/mochitest/.eslintrc.js               |  5 -----
 dom/localstorage/test/.eslintrc.js                  |  5 -----
 dom/locks/test/.eslintrc.js                         |  5 -----
 dom/manifest/test/.eslintrc.js                      |  5 -----
 dom/media/mediasession/test/.eslintrc.js            |  5 -----
 dom/media/test/.eslintrc.js                         |  5 -----
 dom/media/webspeech/recognition/test/.eslintrc.js   |  5 -----
 dom/media/webspeech/synth/test/.eslintrc.js         |  5 -----
 dom/messagechannel/tests/.eslintrc.js               |  5 -----
 dom/midi/tests/.eslintrc.js                         |  5 -----
 dom/network/tests/.eslintrc.js                      |  5 -----
 dom/payments/test/.eslintrc.js                      |  5 -----
 dom/performance/tests/.eslintrc.js                  |  5 -----
 dom/permission/tests/.eslintrc.js                   |  5 -----
 dom/plugins/test/mochitest/.eslintrc.js             |  5 -----
 dom/promise/tests/.eslintrc.js                      |  5 -----
 dom/push/test/.eslintrc.js                          |  5 -----
 dom/reporting/tests/.eslintrc.js                    |  5 -----
 dom/security/test/general/.eslintrc.js              |  5 -----
 dom/security/test/https-first/.eslintrc.js          |  5 -----
 dom/security/test/https-only/.eslintrc.js           |  5 -----
 dom/security/test/referrer-policy/.eslintrc.js      |  5 -----
 dom/security/test/sec-fetch/.eslintrc.js            |  9 ---------
 dom/security/test/sri/.eslintrc.js                  |  5 -----
 dom/serviceworkers/test/.eslintrc.js                |  9 ---------
 dom/smil/test/.eslintrc.js                          |  5 -----
 dom/svg/test/.eslintrc.js                           |  5 -----
 dom/system/tests/.eslintrc.js                       |  5 -----
 dom/u2f/tests/.eslintrc.js                          |  5 -----
 dom/url/tests/.eslintrc.js                          |  9 ---------
 dom/webauthn/tests/.eslintrc.js                     |  5 -----
 dom/websocket/tests/.eslintrc.js                    |  5 -----
 dom/workers/test/.eslintrc.js                       |  9 ---------
 dom/worklet/tests/.eslintrc.js                      |  5 -----
 dom/xhr/tests/.eslintrc.js                          |  5 -----
 dom/xml/test/.eslintrc.js                           |  5 -----
 dom/xul/test/.eslintrc.js                           |  5 -----
 editor/composer/test/.eslintrc.js                   |  5 -----
 editor/spellchecker/tests/.eslintrc.js              |  5 -----
 extensions/permissions/test/.eslintrc.js            |  5 -----
 extensions/universalchardet/tests/.eslintrc.js      |  5 -----
 gfx/layers/apz/test/mochitest/.eslintrc.js          |  5 -----
 image/test/mochitest/.eslintrc.js                   |  5 -----
 intl/benchmarks/.eslintrc.js                        |  9 ---------
 intl/l10n/test/.eslintrc.js                         |  7 -------
 intl/uconv/tests/.eslintrc.js                       |  5 -----
 ipc/testshell/tests/.eslintrc.js                    |  5 -----
 layout/base/tests/.eslintrc.js                      |  5 -----
 layout/forms/test/.eslintrc.js                      |  5 -----
 layout/generic/test/.eslintrc.js                    |  5 -----
 layout/inspector/tests/.eslintrc.js                 |  5 -----
 layout/mathml/tests/.eslintrc.js                    |  5 -----
 layout/style/test/.eslintrc.js                      |  5 -----
 layout/svg/tests/.eslintrc.js                       |  5 -----
 layout/tables/test/.eslintrc.js                     |  5 -----
 layout/xul/test/.eslintrc.js                        |  9 ---------
 memory/replace/dmd/test/.eslintrc.js                |  5 -----
 netwerk/test/httpserver/test/.eslintrc.js           |  5 -----
 parser/htmlparser/tests/mochitest/.eslintrc.js      |  5 -----
 security/sandbox/test/.eslintrc.js                  |  5 -----
 .../baselinecoverage/browser_chrome/.eslintrc.js    |  5 -----
 .../mochitest/baselinecoverage/plain/.eslintrc.js   |  5 -----
 testing/mochitest/tests/python/files/.eslintrc.js   |  8 --------
 testing/modules/tests/xpcshell/.eslintrc.js         |  5 -----
 toolkit/components/aboutmemory/tests/.eslintrc.js   |  5 -----
 toolkit/components/alerts/test/.eslintrc.js         |  5 -----
 .../backgroundhangmonitor/tests/.eslintrc.js        |  5 -----
 toolkit/components/downloads/test/data/.eslintrc.js |  5 -----
 toolkit/components/mozintl/test/.eslintrc.js        |  5 -----
 toolkit/components/mozprotocol/tests/.eslintrc.js   |  5 -----
 toolkit/components/narrate/test/.eslintrc.js        |  5 -----
 toolkit/components/osfile/tests/mochi/.eslintrc.js  |  5 -----
 toolkit/components/pdfjs/test/.eslintrc.js          |  5 -----
 .../components/pictureinpicture/tests/.eslintrc.js  |  5 -----
 toolkit/components/places/tests/.eslintrc.js        |  9 ---------
 .../components/places/tests/bookmarks/.eslintrc.js  |  5 -----
 .../components/places/tests/expiration/.eslintrc.js |  5 -----
 .../components/places/tests/favicons/.eslintrc.js   |  5 -----
 .../components/places/tests/history/.eslintrc.js    |  5 -----
 toolkit/components/places/tests/legacy/.eslintrc.js |  5 -----
 .../components/places/tests/migration/.eslintrc.js  |  5 -----
 .../components/places/tests/queries/.eslintrc.js    |  5 -----
 toolkit/components/printing/tests/.eslintrc.js      |  5 -----
 toolkit/components/reader/test/.eslintrc.js         |  5 -----
 toolkit/components/satchel/test/.eslintrc.js        |  5 -----
 toolkit/components/thumbnails/test/.eslintrc.js     |  5 -----
 toolkit/components/tooltiptext/tests/.eslintrc.js   |  5 -----
 .../url-classifier/tests/mochitest/.eslintrc.js     |  5 -----
 toolkit/components/viewsource/test/.eslintrc.js     |  5 -----
 toolkit/components/windowcreator/test/.eslintrc.js  |  9 ---------
 toolkit/components/windowwatcher/test/.eslintrc.js  |  9 ---------
 toolkit/components/workerloader/tests/.eslintrc.js  |  5 -----
 toolkit/content/tests/widgets/.eslintrc.js          |  5 -----
 toolkit/modules/tests/modules/.eslintrc.js          |  5 -----
 .../mozapps/extensions/test/xpinstall/.eslintrc.js  |  5 -----
 toolkit/mozapps/update/tests/data/.eslintrc.js      |  9 ---------
 toolkit/profile/test/.eslintrc.js                   |  5 -----
 toolkit/profile/xpcshell/.eslintrc.js               |  9 ---------
 toolkit/xre/test/.eslintrc.js                       |  9 ---------
 uriloader/exthandler/tests/mochitest/.eslintrc.js   |  5 -----
 widget/headless/tests/.eslintrc.js                  |  5 -----
 widget/tests/.eslintrc.js                           |  5 -----
 xpfe/appshell/test/.eslintrc.js                     |  5 -----
 218 files changed, 1250 deletions(-)
 delete mode 100644 accessible/tests/crashtests/.eslintrc.js
 delete mode 100644 browser/base/content/test/about/.eslintrc.js
 delete mode 100644 browser/base/content/test/alerts/.eslintrc.js
 delete mode 100644 browser/base/content/test/backforward/.eslintrc.js
 delete mode 100644 browser/base/content/test/caps/.eslintrc.js
 delete mode 100644 browser/base/content/test/captivePortal/.eslintrc.js
 delete mode 100644 browser/base/content/test/contentTheme/.eslintrc.js
 delete mode 100644 browser/base/content/test/contextMenu/.eslintrc.js
 delete mode 100644 browser/base/content/test/favicons/.eslintrc.js
 delete mode 100644 browser/base/content/test/forms/.eslintrc.js
 delete mode 100644 browser/base/content/test/fullscreen/.eslintrc.js
 delete mode 100644 browser/base/content/test/general/.eslintrc.js
 delete mode 100644 browser/base/content/test/gesture/.eslintrc.js
 delete mode 100644 browser/base/content/test/historySwipeAnimation/.eslintrc.js
 delete mode 100644 browser/base/content/test/keyboard/.eslintrc.js
 delete mode 100644 browser/base/content/test/menubar/.eslintrc.js
 delete mode 100644 browser/base/content/test/metaTags/.eslintrc.js
 delete mode 100644 browser/base/content/test/notificationbox/.eslintrc.js
 delete mode 100644 browser/base/content/test/outOfProcess/.eslintrc.js
 delete mode 100644 browser/base/content/test/pageActions/.eslintrc.js
 delete mode 100644 browser/base/content/test/pageStyle/.eslintrc.js
 delete mode 100644 browser/base/content/test/pageinfo/.eslintrc.js
 delete mode 100644 browser/base/content/test/performance/.eslintrc.js
 delete mode 100644 browser/base/content/test/permissions/.eslintrc.js
 delete mode 100644 browser/base/content/test/plugins/.eslintrc.js
 delete mode 100644 browser/base/content/test/popupNotifications/.eslintrc.js
 delete mode 100644 browser/base/content/test/popups/.eslintrc.js
 delete mode 100644 browser/base/content/test/protectionsUI/.eslintrc.js
 delete mode 100644 browser/base/content/test/referrer/.eslintrc.js
 delete mode 100644 browser/base/content/test/sanitize/.eslintrc.js
 delete mode 100644 browser/base/content/test/sidebar/.eslintrc.js
 delete mode 100644 browser/base/content/test/siteIdentity/.eslintrc.js
 delete mode 100644 browser/base/content/test/startup/.eslintrc.js
 delete mode 100644 browser/base/content/test/static/.eslintrc.js
 delete mode 100644 browser/base/content/test/statuspanel/.eslintrc.js
 delete mode 100644 browser/base/content/test/sync/.eslintrc.js
 delete mode 100644 browser/base/content/test/tabMediaIndicator/.eslintrc.js
 delete mode 100644 browser/base/content/test/tabPrompts/.eslintrc.js
 delete mode 100644 browser/base/content/test/tabcrashed/.eslintrc.js
 delete mode 100644 browser/base/content/test/tabdialogs/.eslintrc.js
 delete mode 100644 browser/base/content/test/tabs/.eslintrc.js
 delete mode 100644 browser/base/content/test/touch/.eslintrc.js
 delete mode 100644 browser/base/content/test/utilityOverlay/.eslintrc.js
 delete mode 100644 browser/base/content/test/webrtc/.eslintrc.js
 delete mode 100644 browser/base/content/test/zoom/.eslintrc.js
 delete mode 100644 browser/components/customizableui/test/.eslintrc.js
 delete mode 100644 browser/components/pocket/test/.eslintrc.js
 delete mode 100644 browser/components/preferences/tests/.eslintrc.js
 delete mode 100644 browser/components/protocolhandler/test/.eslintrc.js
 delete mode 100644 browser/components/safebrowsing/content/test/.eslintrc.js
 delete mode 100644 browser/components/sessionstore/test/.eslintrc.js
 delete mode 100644 browser/components/shell/test/.eslintrc.js
 delete mode 100644 browser/components/touchbar/tests/.eslintrc.js
 delete mode 100644 browser/components/translation/test/.eslintrc.js
 delete mode 100644 browser/components/uitour/test/.eslintrc.js
 delete mode 100644 browser/extensions/report-site-issue/test/browser/.eslintrc.js
 delete mode 100644 browser/tools/mozscreenshots/.eslintrc.js
 delete mode 100644 caps/tests/mochitest/.eslintrc.js
 delete mode 100644 devtools/client/debugger/test/mochitest/.eslintrc.js
 delete mode 100644 devtools/client/dom/test/.eslintrc.js
 delete mode 100644 devtools/client/framework/browser-toolbox/test/.eslintrc.js
 delete mode 100644 devtools/client/framework/test/.eslintrc.js
 delete mode 100644 devtools/client/inspector/animation/test/.eslintrc.js
 delete mode 100644 devtools/client/inspector/boxmodel/test/.eslintrc.js
 delete mode 100644 devtools/client/inspector/changes/test/.eslintrc.js
 delete mode 100644 devtools/client/inspector/computed/test/.eslintrc.js
 delete mode 100644 devtools/client/inspector/extensions/test/.eslintrc.js
 delete mode 100644 devtools/client/inspector/flexbox/test/.eslintrc.js
 delete mode 100644 devtools/client/inspector/fonts/test/.eslintrc.js
 delete mode 100644 devtools/client/inspector/grids/test/.eslintrc.js
 delete mode 100644 devtools/client/inspector/markup/test/.eslintrc.js
 delete mode 100644 devtools/client/inspector/rules/test/.eslintrc.js
 delete mode 100644 devtools/client/inspector/shared/test/.eslintrc.js
 delete mode 100644 devtools/client/inspector/test/.eslintrc.js
 delete mode 100644 devtools/client/jsonview/test/.eslintrc.js
 delete mode 100644 devtools/client/memory/test/browser/.eslintrc.js
 delete mode 100644 devtools/client/netmonitor/src/har/test/.eslintrc.js
 delete mode 100644 devtools/client/shared/sourceeditor/test/.eslintrc.js
 delete mode 100644 devtools/client/shared/test/.eslintrc.js
 delete mode 100644 devtools/client/storage/test/.eslintrc.js
 delete mode 100644 devtools/client/styleeditor/test/.eslintrc.js
 delete mode 100644 devtools/shared/commands/inspected-window/tests/.eslintrc.js
 delete mode 100644 devtools/shared/commands/inspector/tests/.eslintrc.js
 delete mode 100644 devtools/shared/commands/resource/tests/.eslintrc.js
 delete mode 100644 devtools/shared/commands/script/tests/.eslintrc.js
 delete mode 100644 devtools/shared/commands/target-configuration/tests/.eslintrc.js
 delete mode 100644 devtools/shared/commands/target/tests/.eslintrc.js
 delete mode 100644 devtools/shared/commands/thread-configuration/tests/.eslintrc.js
 delete mode 100644 devtools/shared/security/tests/chrome/.eslintrc.js
 delete mode 100644 devtools/shared/test-helpers/.eslintrc.js
 delete mode 100644 devtools/shared/webconsole/test/chrome/.eslintrc.js
 delete mode 100644 docshell/test/iframesandbox/.eslintrc.js
 delete mode 100644 docshell/test/navigation/.eslintrc.js
 delete mode 100644 dom/abort/tests/.eslintrc.js
 delete mode 100644 dom/animation/test/mozilla/.eslintrc.js
 delete mode 100644 dom/animation/test/style/.eslintrc.js
 delete mode 100644 dom/battery/test/.eslintrc.js
 delete mode 100644 dom/bindings/test/.eslintrc.js
 delete mode 100644 dom/broadcastchannel/tests/.eslintrc.js
 delete mode 100644 dom/canvas/test/.eslintrc.js
 delete mode 100644 dom/console/tests/.eslintrc.js
 delete mode 100644 dom/credentialmanagement/tests/.eslintrc.js
 delete mode 100644 dom/crypto/test/.eslintrc.js
 delete mode 100644 dom/encoding/test/.eslintrc.js
 delete mode 100644 dom/events/test/.eslintrc.js
 delete mode 100644 dom/fetch/tests/.eslintrc.js
 delete mode 100644 dom/file/tests/.eslintrc.js
 delete mode 100644 dom/filesystem/compat/tests/.eslintrc.js
 delete mode 100644 dom/filesystem/tests/.eslintrc.js
 delete mode 100644 dom/flex/test/.eslintrc.js
 delete mode 100644 dom/grid/test/.eslintrc.js
 delete mode 100644 dom/html/test/.eslintrc.js
 delete mode 100644 dom/html/test/forms/.eslintrc.js
 delete mode 100644 dom/ipc/tests/.eslintrc.js
 delete mode 100644 dom/jsurl/test/.eslintrc.js
 delete mode 100644 dom/l10n/tests/mochitest/.eslintrc.js
 delete mode 100644 dom/localstorage/test/.eslintrc.js
 delete mode 100644 dom/locks/test/.eslintrc.js
 delete mode 100644 dom/manifest/test/.eslintrc.js
 delete mode 100644 dom/media/mediasession/test/.eslintrc.js
 delete mode 100644 dom/media/test/.eslintrc.js
 delete mode 100644 dom/media/webspeech/recognition/test/.eslintrc.js
 delete mode 100644 dom/media/webspeech/synth/test/.eslintrc.js
 delete mode 100644 dom/messagechannel/tests/.eslintrc.js
 delete mode 100644 dom/midi/tests/.eslintrc.js
 delete mode 100644 dom/network/tests/.eslintrc.js
 delete mode 100644 dom/payments/test/.eslintrc.js
 delete mode 100644 dom/performance/tests/.eslintrc.js
 delete mode 100644 dom/permission/tests/.eslintrc.js
 delete mode 100644 dom/plugins/test/mochitest/.eslintrc.js
 delete mode 100644 dom/promise/tests/.eslintrc.js
 delete mode 100644 dom/push/test/.eslintrc.js
 delete mode 100644 dom/reporting/tests/.eslintrc.js
 delete mode 100644 dom/security/test/general/.eslintrc.js
 delete mode 100644 dom/security/test/https-first/.eslintrc.js
 delete mode 100644 dom/security/test/https-only/.eslintrc.js
 delete mode 100644 dom/security/test/referrer-policy/.eslintrc.js
 delete mode 100644 dom/security/test/sec-fetch/.eslintrc.js
 delete mode 100644 dom/security/test/sri/.eslintrc.js
 delete mode 100644 dom/serviceworkers/test/.eslintrc.js
 delete mode 100644 dom/smil/test/.eslintrc.js
 delete mode 100644 dom/svg/test/.eslintrc.js
 delete mode 100644 dom/system/tests/.eslintrc.js
 delete mode 100644 dom/u2f/tests/.eslintrc.js
 delete mode 100644 dom/url/tests/.eslintrc.js
 delete mode 100644 dom/webauthn/tests/.eslintrc.js
 delete mode 100644 dom/websocket/tests/.eslintrc.js
 delete mode 100644 dom/workers/test/.eslintrc.js
 delete mode 100644 dom/worklet/tests/.eslintrc.js
 delete mode 100644 dom/xhr/tests/.eslintrc.js
 delete mode 100644 dom/xml/test/.eslintrc.js
 delete mode 100644 dom/xul/test/.eslintrc.js
 delete mode 100644 editor/composer/test/.eslintrc.js
 delete mode 100644 editor/spellchecker/tests/.eslintrc.js
 delete mode 100644 extensions/permissions/test/.eslintrc.js
 delete mode 100644 extensions/universalchardet/tests/.eslintrc.js
 delete mode 100644 gfx/layers/apz/test/mochitest/.eslintrc.js
 delete mode 100644 image/test/mochitest/.eslintrc.js
 delete mode 100644 intl/benchmarks/.eslintrc.js
 delete mode 100644 intl/l10n/test/.eslintrc.js
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diff --git a/accessible/tests/crashtests/.eslintrc.js b/accessible/tests/crashtests/.eslintrc.js
deleted file mode 100644
index 1a103a8d38c11..0000000000000
--- a/accessible/tests/crashtests/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-module.exports = {
-  "extends": [
-    "plugin:mozilla/mochitest-test"
-  ],
-};
diff --git a/browser/base/content/test/about/.eslintrc.js b/browser/base/content/test/about/.eslintrc.js
deleted file mode 100644
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--- a/browser/base/content/test/about/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/alerts/.eslintrc.js b/browser/base/content/test/alerts/.eslintrc.js
deleted file mode 100644
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--- a/browser/base/content/test/alerts/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/backforward/.eslintrc.js b/browser/base/content/test/backforward/.eslintrc.js
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index 1779fd7f1cf87..0000000000000
--- a/browser/base/content/test/backforward/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/caps/.eslintrc.js b/browser/base/content/test/caps/.eslintrc.js
deleted file mode 100644
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--- a/browser/base/content/test/caps/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/captivePortal/.eslintrc.js b/browser/base/content/test/captivePortal/.eslintrc.js
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--- a/browser/base/content/test/captivePortal/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/contentTheme/.eslintrc.js b/browser/base/content/test/contentTheme/.eslintrc.js
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--- a/browser/base/content/test/contentTheme/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/contextMenu/.eslintrc.js b/browser/base/content/test/contextMenu/.eslintrc.js
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index 1779fd7f1cf87..0000000000000
--- a/browser/base/content/test/contextMenu/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/favicons/.eslintrc.js b/browser/base/content/test/favicons/.eslintrc.js
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--- a/browser/base/content/test/favicons/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test", "plugin:mozilla/mochitest-test"],
-};
diff --git a/browser/base/content/test/forms/.eslintrc.js b/browser/base/content/test/forms/.eslintrc.js
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--- a/browser/base/content/test/forms/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/fullscreen/.eslintrc.js b/browser/base/content/test/fullscreen/.eslintrc.js
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--- a/browser/base/content/test/fullscreen/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/general/.eslintrc.js b/browser/base/content/test/general/.eslintrc.js
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--- a/browser/base/content/test/general/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test", "plugin:mozilla/mochitest-test"],
-};
diff --git a/browser/base/content/test/gesture/.eslintrc.js b/browser/base/content/test/gesture/.eslintrc.js
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--- a/browser/base/content/test/gesture/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/historySwipeAnimation/.eslintrc.js b/browser/base/content/test/historySwipeAnimation/.eslintrc.js
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--- a/browser/base/content/test/historySwipeAnimation/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/keyboard/.eslintrc.js b/browser/base/content/test/keyboard/.eslintrc.js
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index 1779fd7f1cf87..0000000000000
--- a/browser/base/content/test/keyboard/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/menubar/.eslintrc.js b/browser/base/content/test/menubar/.eslintrc.js
deleted file mode 100644
index 1779fd7f1cf87..0000000000000
--- a/browser/base/content/test/menubar/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/metaTags/.eslintrc.js b/browser/base/content/test/metaTags/.eslintrc.js
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--- a/browser/base/content/test/metaTags/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/notificationbox/.eslintrc.js b/browser/base/content/test/notificationbox/.eslintrc.js
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index 1779fd7f1cf87..0000000000000
--- a/browser/base/content/test/notificationbox/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/outOfProcess/.eslintrc.js b/browser/base/content/test/outOfProcess/.eslintrc.js
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--- a/browser/base/content/test/outOfProcess/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/pageActions/.eslintrc.js b/browser/base/content/test/pageActions/.eslintrc.js
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index 1779fd7f1cf87..0000000000000
--- a/browser/base/content/test/pageActions/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/pageStyle/.eslintrc.js b/browser/base/content/test/pageStyle/.eslintrc.js
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--- a/browser/base/content/test/pageStyle/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test", "plugin:mozilla/mochitest-test"],
-};
diff --git a/browser/base/content/test/pageinfo/.eslintrc.js b/browser/base/content/test/pageinfo/.eslintrc.js
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--- a/browser/base/content/test/pageinfo/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/performance/.eslintrc.js b/browser/base/content/test/performance/.eslintrc.js
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--- a/browser/base/content/test/performance/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/permissions/.eslintrc.js b/browser/base/content/test/permissions/.eslintrc.js
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--- a/browser/base/content/test/permissions/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/plugins/.eslintrc.js b/browser/base/content/test/plugins/.eslintrc.js
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--- a/browser/base/content/test/plugins/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/popupNotifications/.eslintrc.js b/browser/base/content/test/popupNotifications/.eslintrc.js
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--- a/browser/base/content/test/popupNotifications/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/popups/.eslintrc.js b/browser/base/content/test/popups/.eslintrc.js
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--- a/browser/base/content/test/popups/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/protectionsUI/.eslintrc.js b/browser/base/content/test/protectionsUI/.eslintrc.js
deleted file mode 100644
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--- a/browser/base/content/test/protectionsUI/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/referrer/.eslintrc.js b/browser/base/content/test/referrer/.eslintrc.js
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--- a/browser/base/content/test/referrer/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/sanitize/.eslintrc.js b/browser/base/content/test/sanitize/.eslintrc.js
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--- a/browser/base/content/test/sanitize/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/sidebar/.eslintrc.js b/browser/base/content/test/sidebar/.eslintrc.js
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index 1779fd7f1cf87..0000000000000
--- a/browser/base/content/test/sidebar/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/siteIdentity/.eslintrc.js b/browser/base/content/test/siteIdentity/.eslintrc.js
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index 1779fd7f1cf87..0000000000000
--- a/browser/base/content/test/siteIdentity/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/startup/.eslintrc.js b/browser/base/content/test/startup/.eslintrc.js
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--- a/browser/base/content/test/startup/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/static/.eslintrc.js b/browser/base/content/test/static/.eslintrc.js
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--- a/browser/base/content/test/static/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/statuspanel/.eslintrc.js b/browser/base/content/test/statuspanel/.eslintrc.js
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--- a/browser/base/content/test/statuspanel/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/sync/.eslintrc.js b/browser/base/content/test/sync/.eslintrc.js
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--- a/browser/base/content/test/sync/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/tabMediaIndicator/.eslintrc.js b/browser/base/content/test/tabMediaIndicator/.eslintrc.js
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--- a/browser/base/content/test/tabMediaIndicator/.eslintrc.js
+++ /dev/null
@@ -1,8 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-  rules: {
-    "no-shadow": "off",
-  },
-};
diff --git a/browser/base/content/test/tabPrompts/.eslintrc.js b/browser/base/content/test/tabPrompts/.eslintrc.js
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+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/tabcrashed/.eslintrc.js b/browser/base/content/test/tabcrashed/.eslintrc.js
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--- a/browser/base/content/test/tabcrashed/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/tabdialogs/.eslintrc.js b/browser/base/content/test/tabdialogs/.eslintrc.js
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+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/tabs/.eslintrc.js b/browser/base/content/test/tabs/.eslintrc.js
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+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/touch/.eslintrc.js b/browser/base/content/test/touch/.eslintrc.js
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--- a/browser/base/content/test/touch/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/utilityOverlay/.eslintrc.js b/browser/base/content/test/utilityOverlay/.eslintrc.js
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--- a/browser/base/content/test/utilityOverlay/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/webrtc/.eslintrc.js b/browser/base/content/test/webrtc/.eslintrc.js
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+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/base/content/test/zoom/.eslintrc.js b/browser/base/content/test/zoom/.eslintrc.js
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--- a/browser/base/content/test/zoom/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/components/customizableui/test/.eslintrc.js b/browser/components/customizableui/test/.eslintrc.js
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--- a/browser/components/customizableui/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/components/pocket/test/.eslintrc.js b/browser/components/pocket/test/.eslintrc.js
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--- a/browser/components/pocket/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/components/preferences/tests/.eslintrc.js b/browser/components/preferences/tests/.eslintrc.js
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--- a/browser/components/preferences/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/components/protocolhandler/test/.eslintrc.js b/browser/components/protocolhandler/test/.eslintrc.js
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--- a/browser/components/protocolhandler/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/browser/components/safebrowsing/content/test/.eslintrc.js b/browser/components/safebrowsing/content/test/.eslintrc.js
deleted file mode 100644
index 1779fd7f1cf87..0000000000000
--- a/browser/components/safebrowsing/content/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/components/sessionstore/test/.eslintrc.js b/browser/components/sessionstore/test/.eslintrc.js
deleted file mode 100644
index 1779fd7f1cf87..0000000000000
--- a/browser/components/sessionstore/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/components/shell/test/.eslintrc.js b/browser/components/shell/test/.eslintrc.js
deleted file mode 100644
index 1779fd7f1cf87..0000000000000
--- a/browser/components/shell/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/components/touchbar/tests/.eslintrc.js b/browser/components/touchbar/tests/.eslintrc.js
deleted file mode 100644
index 76ee66b712271..0000000000000
--- a/browser/components/touchbar/tests/.eslintrc.js
+++ /dev/null
@@ -1,9 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/components/translation/test/.eslintrc.js b/browser/components/translation/test/.eslintrc.js
deleted file mode 100644
index 1779fd7f1cf87..0000000000000
--- a/browser/components/translation/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/components/uitour/test/.eslintrc.js b/browser/components/uitour/test/.eslintrc.js
deleted file mode 100644
index 1779fd7f1cf87..0000000000000
--- a/browser/components/uitour/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/extensions/report-site-issue/test/browser/.eslintrc.js b/browser/extensions/report-site-issue/test/browser/.eslintrc.js
deleted file mode 100644
index 1779fd7f1cf87..0000000000000
--- a/browser/extensions/report-site-issue/test/browser/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/browser/tools/mozscreenshots/.eslintrc.js b/browser/tools/mozscreenshots/.eslintrc.js
deleted file mode 100644
index 76ee66b712271..0000000000000
--- a/browser/tools/mozscreenshots/.eslintrc.js
+++ /dev/null
@@ -1,9 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/caps/tests/mochitest/.eslintrc.js b/caps/tests/mochitest/.eslintrc.js
deleted file mode 100644
index 735f687ed1cca..0000000000000
--- a/caps/tests/mochitest/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/debugger/test/mochitest/.eslintrc.js b/devtools/client/debugger/test/mochitest/.eslintrc.js
deleted file mode 100644
index 80ecf2520dfdb..0000000000000
--- a/devtools/client/debugger/test/mochitest/.eslintrc.js
+++ /dev/null
@@ -1,11 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
-
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/dom/test/.eslintrc.js b/devtools/client/dom/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/dom/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/framework/browser-toolbox/test/.eslintrc.js b/devtools/client/framework/browser-toolbox/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/framework/browser-toolbox/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/framework/test/.eslintrc.js b/devtools/client/framework/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/framework/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/inspector/animation/test/.eslintrc.js b/devtools/client/inspector/animation/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/inspector/animation/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/inspector/boxmodel/test/.eslintrc.js b/devtools/client/inspector/boxmodel/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/inspector/boxmodel/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/inspector/changes/test/.eslintrc.js b/devtools/client/inspector/changes/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/inspector/changes/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/inspector/computed/test/.eslintrc.js b/devtools/client/inspector/computed/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/inspector/computed/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/inspector/extensions/test/.eslintrc.js b/devtools/client/inspector/extensions/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/inspector/extensions/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/inspector/flexbox/test/.eslintrc.js b/devtools/client/inspector/flexbox/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/inspector/flexbox/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/inspector/fonts/test/.eslintrc.js b/devtools/client/inspector/fonts/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/inspector/fonts/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/inspector/grids/test/.eslintrc.js b/devtools/client/inspector/grids/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/inspector/grids/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/inspector/markup/test/.eslintrc.js b/devtools/client/inspector/markup/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/inspector/markup/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/inspector/rules/test/.eslintrc.js b/devtools/client/inspector/rules/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/inspector/rules/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/inspector/shared/test/.eslintrc.js b/devtools/client/inspector/shared/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/inspector/shared/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/inspector/test/.eslintrc.js b/devtools/client/inspector/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/inspector/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/jsonview/test/.eslintrc.js b/devtools/client/jsonview/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/jsonview/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/memory/test/browser/.eslintrc.js b/devtools/client/memory/test/browser/.eslintrc.js
deleted file mode 100644
index cbbb9e5b83433..0000000000000
--- a/devtools/client/memory/test/browser/.eslintrc.js
+++ /dev/null
@@ -1,8 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-  rules: {
-    "no-unused-vars": ["error", { vars: "local", args: "none" }],
-  },
-};
diff --git a/devtools/client/netmonitor/src/har/test/.eslintrc.js b/devtools/client/netmonitor/src/har/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/netmonitor/src/har/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/shared/sourceeditor/test/.eslintrc.js b/devtools/client/shared/sourceeditor/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/shared/sourceeditor/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/shared/test/.eslintrc.js b/devtools/client/shared/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/shared/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/storage/test/.eslintrc.js b/devtools/client/storage/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/storage/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/client/styleeditor/test/.eslintrc.js b/devtools/client/styleeditor/test/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/client/styleeditor/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/shared/commands/inspected-window/tests/.eslintrc.js b/devtools/shared/commands/inspected-window/tests/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/shared/commands/inspected-window/tests/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/shared/commands/inspector/tests/.eslintrc.js b/devtools/shared/commands/inspector/tests/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/shared/commands/inspector/tests/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/shared/commands/resource/tests/.eslintrc.js b/devtools/shared/commands/resource/tests/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/shared/commands/resource/tests/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/shared/commands/script/tests/.eslintrc.js b/devtools/shared/commands/script/tests/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/shared/commands/script/tests/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/shared/commands/target-configuration/tests/.eslintrc.js b/devtools/shared/commands/target-configuration/tests/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/shared/commands/target-configuration/tests/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/shared/commands/target/tests/.eslintrc.js b/devtools/shared/commands/target/tests/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/shared/commands/target/tests/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/shared/commands/thread-configuration/tests/.eslintrc.js b/devtools/shared/commands/thread-configuration/tests/.eslintrc.js
deleted file mode 100644
index 09eb95404bf73..0000000000000
--- a/devtools/shared/commands/thread-configuration/tests/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/shared/security/tests/chrome/.eslintrc.js b/devtools/shared/security/tests/chrome/.eslintrc.js
deleted file mode 100644
index 660a3bf0a98bd..0000000000000
--- a/devtools/shared/security/tests/chrome/.eslintrc.js
+++ /dev/null
@@ -1,6 +0,0 @@
-"use strict";
-
-module.exports = {
-  // Extend from the shared list of defined globals for mochitests.
-  extends: "plugin:mozilla/chrome-test",
-};
diff --git a/devtools/shared/test-helpers/.eslintrc.js b/devtools/shared/test-helpers/.eslintrc.js
deleted file mode 100644
index 2cb9a0b410e3d..0000000000000
--- a/devtools/shared/test-helpers/.eslintrc.js
+++ /dev/null
@@ -1,11 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-"use strict";
-
-// General rule from /.eslintrc.js only accept folders matching **/test*/browser*/
-// where is this folder doesn't match, so manually apply browser test config
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/devtools/shared/webconsole/test/chrome/.eslintrc.js b/devtools/shared/webconsole/test/chrome/.eslintrc.js
deleted file mode 100644
index 660a3bf0a98bd..0000000000000
--- a/devtools/shared/webconsole/test/chrome/.eslintrc.js
+++ /dev/null
@@ -1,6 +0,0 @@
-"use strict";
-
-module.exports = {
-  // Extend from the shared list of defined globals for mochitests.
-  extends: "plugin:mozilla/chrome-test",
-};
diff --git a/docshell/test/iframesandbox/.eslintrc.js b/docshell/test/iframesandbox/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/docshell/test/iframesandbox/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/docshell/test/navigation/.eslintrc.js b/docshell/test/navigation/.eslintrc.js
deleted file mode 100644
index 7612459de1fc6..0000000000000
--- a/docshell/test/navigation/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test", "plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/abort/tests/.eslintrc.js b/dom/abort/tests/.eslintrc.js
deleted file mode 100644
index 0bae1693ce9ce..0000000000000
--- a/dom/abort/tests/.eslintrc.js
+++ /dev/null
@@ -1,13 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-  plugins: ["mozilla"],
-  rules: {
-    "no-shadow": "off",
-  },
-  globals: {
-    AbortController: true,
-    AbortSignal: true,
-  },
-};
diff --git a/dom/animation/test/mozilla/.eslintrc.js b/dom/animation/test/mozilla/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/dom/animation/test/mozilla/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/animation/test/style/.eslintrc.js b/dom/animation/test/style/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/dom/animation/test/style/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/battery/test/.eslintrc.js b/dom/battery/test/.eslintrc.js
deleted file mode 100644
index 19d9df957ac96..0000000000000
--- a/dom/battery/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test", "plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/bindings/test/.eslintrc.js b/dom/bindings/test/.eslintrc.js
deleted file mode 100644
index 19d9df957ac96..0000000000000
--- a/dom/bindings/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test", "plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/broadcastchannel/tests/.eslintrc.js b/dom/broadcastchannel/tests/.eslintrc.js
deleted file mode 100644
index 7612459de1fc6..0000000000000
--- a/dom/broadcastchannel/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test", "plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/canvas/test/.eslintrc.js b/dom/canvas/test/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/dom/canvas/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/console/tests/.eslintrc.js b/dom/console/tests/.eslintrc.js
deleted file mode 100644
index 19d9df957ac96..0000000000000
--- a/dom/console/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test", "plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/credentialmanagement/tests/.eslintrc.js b/dom/credentialmanagement/tests/.eslintrc.js
deleted file mode 100644
index 71a17f2e9e889..0000000000000
--- a/dom/credentialmanagement/tests/.eslintrc.js
+++ /dev/null
@@ -1,6 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-  plugins: ["mozilla"],
-};
diff --git a/dom/crypto/test/.eslintrc.js b/dom/crypto/test/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/dom/crypto/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/encoding/test/.eslintrc.js b/dom/encoding/test/.eslintrc.js
deleted file mode 100644
index 19d9df957ac96..0000000000000
--- a/dom/encoding/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test", "plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/events/test/.eslintrc.js b/dom/events/test/.eslintrc.js
deleted file mode 100644
index 317abe7b487a5..0000000000000
--- a/dom/events/test/.eslintrc.js
+++ /dev/null
@@ -1,9 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: [
-    "plugin:mozilla/browser-test",
-    "plugin:mozilla/chrome-test",
-    "plugin:mozilla/mochitest-test",
-  ],
-};
diff --git a/dom/fetch/tests/.eslintrc.js b/dom/fetch/tests/.eslintrc.js
deleted file mode 100644
index 1779fd7f1cf87..0000000000000
--- a/dom/fetch/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/dom/file/tests/.eslintrc.js b/dom/file/tests/.eslintrc.js
deleted file mode 100644
index c73210f4cffc1..0000000000000
--- a/dom/file/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/xpcshell-test"],
-};
diff --git a/dom/filesystem/compat/tests/.eslintrc.js b/dom/filesystem/compat/tests/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/dom/filesystem/compat/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/filesystem/tests/.eslintrc.js b/dom/filesystem/tests/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/dom/filesystem/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/flex/test/.eslintrc.js b/dom/flex/test/.eslintrc.js
deleted file mode 100644
index f667a57bf5c7a..0000000000000
--- a/dom/flex/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test"],
-};
diff --git a/dom/grid/test/.eslintrc.js b/dom/grid/test/.eslintrc.js
deleted file mode 100644
index f667a57bf5c7a..0000000000000
--- a/dom/grid/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test"],
-};
diff --git a/dom/html/test/.eslintrc.js b/dom/html/test/.eslintrc.js
deleted file mode 100644
index 317abe7b487a5..0000000000000
--- a/dom/html/test/.eslintrc.js
+++ /dev/null
@@ -1,9 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: [
-    "plugin:mozilla/browser-test",
-    "plugin:mozilla/chrome-test",
-    "plugin:mozilla/mochitest-test",
-  ],
-};
diff --git a/dom/html/test/forms/.eslintrc.js b/dom/html/test/forms/.eslintrc.js
deleted file mode 100644
index 19d9df957ac96..0000000000000
--- a/dom/html/test/forms/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test", "plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/ipc/tests/.eslintrc.js b/dom/ipc/tests/.eslintrc.js
deleted file mode 100644
index 4e9d6a74a8372..0000000000000
--- a/dom/ipc/tests/.eslintrc.js
+++ /dev/null
@@ -1,9 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: [
-    "plugin:mozilla/browser-test",
-    "plugin:mozilla/mochitest-test",
-    "plugin:mozilla/xpcshell-test",
-  ],
-};
diff --git a/dom/jsurl/test/.eslintrc.js b/dom/jsurl/test/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/dom/jsurl/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/l10n/tests/mochitest/.eslintrc.js b/dom/l10n/tests/mochitest/.eslintrc.js
deleted file mode 100644
index 1779fd7f1cf87..0000000000000
--- a/dom/l10n/tests/mochitest/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/dom/localstorage/test/.eslintrc.js b/dom/localstorage/test/.eslintrc.js
deleted file mode 100644
index 735f687ed1cca..0000000000000
--- a/dom/localstorage/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/browser-test"],
-};
diff --git a/dom/locks/test/.eslintrc.js b/dom/locks/test/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/dom/locks/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/manifest/test/.eslintrc.js b/dom/manifest/test/.eslintrc.js
deleted file mode 100644
index 7612459de1fc6..0000000000000
--- a/dom/manifest/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test", "plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/media/mediasession/test/.eslintrc.js b/dom/media/mediasession/test/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/dom/media/mediasession/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/media/test/.eslintrc.js b/dom/media/test/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/dom/media/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/media/webspeech/recognition/test/.eslintrc.js b/dom/media/webspeech/recognition/test/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/dom/media/webspeech/recognition/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/media/webspeech/synth/test/.eslintrc.js b/dom/media/webspeech/synth/test/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/dom/media/webspeech/synth/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/messagechannel/tests/.eslintrc.js b/dom/messagechannel/tests/.eslintrc.js
deleted file mode 100644
index 721e0938af3f0..0000000000000
--- a/dom/messagechannel/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/chrome-test"],
-};
diff --git a/dom/midi/tests/.eslintrc.js b/dom/midi/tests/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/dom/midi/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/network/tests/.eslintrc.js b/dom/network/tests/.eslintrc.js
deleted file mode 100644
index 721e0938af3f0..0000000000000
--- a/dom/network/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/chrome-test"],
-};
diff --git a/dom/payments/test/.eslintrc.js b/dom/payments/test/.eslintrc.js
deleted file mode 100644
index 735f687ed1cca..0000000000000
--- a/dom/payments/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/browser-test"],
-};
diff --git a/dom/performance/tests/.eslintrc.js b/dom/performance/tests/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/dom/performance/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/permission/tests/.eslintrc.js b/dom/permission/tests/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/dom/permission/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/plugins/test/mochitest/.eslintrc.js b/dom/plugins/test/mochitest/.eslintrc.js
deleted file mode 100644
index 7612459de1fc6..0000000000000
--- a/dom/plugins/test/mochitest/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test", "plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/promise/tests/.eslintrc.js b/dom/promise/tests/.eslintrc.js
deleted file mode 100644
index 721e0938af3f0..0000000000000
--- a/dom/promise/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/chrome-test"],
-};
diff --git a/dom/push/test/.eslintrc.js b/dom/push/test/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/dom/push/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/reporting/tests/.eslintrc.js b/dom/reporting/tests/.eslintrc.js
deleted file mode 100644
index 735f687ed1cca..0000000000000
--- a/dom/reporting/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/browser-test"],
-};
diff --git a/dom/security/test/general/.eslintrc.js b/dom/security/test/general/.eslintrc.js
deleted file mode 100644
index 7f5e495d3b951..0000000000000
--- a/dom/security/test/general/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test", "plugin:mozilla/chrome-test"],
-};
diff --git a/dom/security/test/https-first/.eslintrc.js b/dom/security/test/https-first/.eslintrc.js
deleted file mode 100644
index 1779fd7f1cf87..0000000000000
--- a/dom/security/test/https-first/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/dom/security/test/https-only/.eslintrc.js b/dom/security/test/https-only/.eslintrc.js
deleted file mode 100644
index 7612459de1fc6..0000000000000
--- a/dom/security/test/https-only/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test", "plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/security/test/referrer-policy/.eslintrc.js b/dom/security/test/referrer-policy/.eslintrc.js
deleted file mode 100644
index 7612459de1fc6..0000000000000
--- a/dom/security/test/referrer-policy/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test", "plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/security/test/sec-fetch/.eslintrc.js b/dom/security/test/sec-fetch/.eslintrc.js
deleted file mode 100644
index 317abe7b487a5..0000000000000
--- a/dom/security/test/sec-fetch/.eslintrc.js
+++ /dev/null
@@ -1,9 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: [
-    "plugin:mozilla/browser-test",
-    "plugin:mozilla/chrome-test",
-    "plugin:mozilla/mochitest-test",
-  ],
-};
diff --git a/dom/security/test/sri/.eslintrc.js b/dom/security/test/sri/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/dom/security/test/sri/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/serviceworkers/test/.eslintrc.js b/dom/serviceworkers/test/.eslintrc.js
deleted file mode 100644
index 6499767b2d234..0000000000000
--- a/dom/serviceworkers/test/.eslintrc.js
+++ /dev/null
@@ -1,9 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: [
-    "plugin:mozilla/mochitest-test",
-    "plugin:mozilla/browser-test",
-    "plugin:mozilla/chrome-test",
-  ],
-};
diff --git a/dom/smil/test/.eslintrc.js b/dom/smil/test/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/dom/smil/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/svg/test/.eslintrc.js b/dom/svg/test/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/dom/svg/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/system/tests/.eslintrc.js b/dom/system/tests/.eslintrc.js
deleted file mode 100644
index 19d9df957ac96..0000000000000
--- a/dom/system/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test", "plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/u2f/tests/.eslintrc.js b/dom/u2f/tests/.eslintrc.js
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index 845ed3f013b81..0000000000000
--- a/dom/u2f/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/url/tests/.eslintrc.js b/dom/url/tests/.eslintrc.js
deleted file mode 100644
index 6499767b2d234..0000000000000
--- a/dom/url/tests/.eslintrc.js
+++ /dev/null
@@ -1,9 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: [
-    "plugin:mozilla/mochitest-test",
-    "plugin:mozilla/browser-test",
-    "plugin:mozilla/chrome-test",
-  ],
-};
diff --git a/dom/webauthn/tests/.eslintrc.js b/dom/webauthn/tests/.eslintrc.js
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index 845ed3f013b81..0000000000000
--- a/dom/webauthn/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/websocket/tests/.eslintrc.js b/dom/websocket/tests/.eslintrc.js
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index 721e0938af3f0..0000000000000
--- a/dom/websocket/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/chrome-test"],
-};
diff --git a/dom/workers/test/.eslintrc.js b/dom/workers/test/.eslintrc.js
deleted file mode 100644
index 6499767b2d234..0000000000000
--- a/dom/workers/test/.eslintrc.js
+++ /dev/null
@@ -1,9 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: [
-    "plugin:mozilla/mochitest-test",
-    "plugin:mozilla/browser-test",
-    "plugin:mozilla/chrome-test",
-  ],
-};
diff --git a/dom/worklet/tests/.eslintrc.js b/dom/worklet/tests/.eslintrc.js
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index 845ed3f013b81..0000000000000
--- a/dom/worklet/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/xhr/tests/.eslintrc.js b/dom/xhr/tests/.eslintrc.js
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index 735f687ed1cca..0000000000000
--- a/dom/xhr/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/browser-test"],
-};
diff --git a/dom/xml/test/.eslintrc.js b/dom/xml/test/.eslintrc.js
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index 845ed3f013b81..0000000000000
--- a/dom/xml/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/dom/xul/test/.eslintrc.js b/dom/xul/test/.eslintrc.js
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index 721e0938af3f0..0000000000000
--- a/dom/xul/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/chrome-test"],
-};
diff --git a/editor/composer/test/.eslintrc.js b/editor/composer/test/.eslintrc.js
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--- a/editor/composer/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test", "plugin:mozilla/mochitest-test"],
-};
diff --git a/editor/spellchecker/tests/.eslintrc.js b/editor/spellchecker/tests/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/editor/spellchecker/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/extensions/permissions/test/.eslintrc.js b/extensions/permissions/test/.eslintrc.js
deleted file mode 100644
index 735f687ed1cca..0000000000000
--- a/extensions/permissions/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/browser-test"],
-};
diff --git a/extensions/universalchardet/tests/.eslintrc.js b/extensions/universalchardet/tests/.eslintrc.js
deleted file mode 100644
index f667a57bf5c7a..0000000000000
--- a/extensions/universalchardet/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test"],
-};
diff --git a/gfx/layers/apz/test/mochitest/.eslintrc.js b/gfx/layers/apz/test/mochitest/.eslintrc.js
deleted file mode 100644
index 721e0938af3f0..0000000000000
--- a/gfx/layers/apz/test/mochitest/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/chrome-test"],
-};
diff --git a/image/test/mochitest/.eslintrc.js b/image/test/mochitest/.eslintrc.js
deleted file mode 100644
index 721e0938af3f0..0000000000000
--- a/image/test/mochitest/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/chrome-test"],
-};
diff --git a/intl/benchmarks/.eslintrc.js b/intl/benchmarks/.eslintrc.js
deleted file mode 100644
index a02973d187045..0000000000000
--- a/intl/benchmarks/.eslintrc.js
+++ /dev/null
@@ -1,9 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/xpcshell-test"],
-};
diff --git a/intl/l10n/test/.eslintrc.js b/intl/l10n/test/.eslintrc.js
deleted file mode 100644
index 9db908f38e332..0000000000000
--- a/intl/l10n/test/.eslintrc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-"use strict";
-
-module.exports = {
-  "extends": [
-    "plugin:mozilla/xpcshell-test",
-  ]
-};
diff --git a/intl/uconv/tests/.eslintrc.js b/intl/uconv/tests/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/intl/uconv/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/ipc/testshell/tests/.eslintrc.js b/ipc/testshell/tests/.eslintrc.js
deleted file mode 100644
index 69e89d0054ba4..0000000000000
--- a/ipc/testshell/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/xpcshell-test"],
-};
diff --git a/layout/base/tests/.eslintrc.js b/layout/base/tests/.eslintrc.js
deleted file mode 100644
index 735f687ed1cca..0000000000000
--- a/layout/base/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/browser-test"],
-};
diff --git a/layout/forms/test/.eslintrc.js b/layout/forms/test/.eslintrc.js
deleted file mode 100644
index 721e0938af3f0..0000000000000
--- a/layout/forms/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/chrome-test"],
-};
diff --git a/layout/generic/test/.eslintrc.js b/layout/generic/test/.eslintrc.js
deleted file mode 100644
index 721e0938af3f0..0000000000000
--- a/layout/generic/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/chrome-test"],
-};
diff --git a/layout/inspector/tests/.eslintrc.js b/layout/inspector/tests/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/layout/inspector/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/layout/mathml/tests/.eslintrc.js b/layout/mathml/tests/.eslintrc.js
deleted file mode 100644
index 721e0938af3f0..0000000000000
--- a/layout/mathml/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/chrome-test"],
-};
diff --git a/layout/style/test/.eslintrc.js b/layout/style/test/.eslintrc.js
deleted file mode 100644
index 735f687ed1cca..0000000000000
--- a/layout/style/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/browser-test"],
-};
diff --git a/layout/svg/tests/.eslintrc.js b/layout/svg/tests/.eslintrc.js
deleted file mode 100644
index 721e0938af3f0..0000000000000
--- a/layout/svg/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/chrome-test"],
-};
diff --git a/layout/tables/test/.eslintrc.js b/layout/tables/test/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/layout/tables/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/layout/xul/test/.eslintrc.js b/layout/xul/test/.eslintrc.js
deleted file mode 100644
index 6499767b2d234..0000000000000
--- a/layout/xul/test/.eslintrc.js
+++ /dev/null
@@ -1,9 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: [
-    "plugin:mozilla/mochitest-test",
-    "plugin:mozilla/browser-test",
-    "plugin:mozilla/chrome-test",
-  ],
-};
diff --git a/memory/replace/dmd/test/.eslintrc.js b/memory/replace/dmd/test/.eslintrc.js
deleted file mode 100644
index 69e89d0054ba4..0000000000000
--- a/memory/replace/dmd/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/xpcshell-test"],
-};
diff --git a/netwerk/test/httpserver/test/.eslintrc.js b/netwerk/test/httpserver/test/.eslintrc.js
deleted file mode 100644
index 69e89d0054ba4..0000000000000
--- a/netwerk/test/httpserver/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/xpcshell-test"],
-};
diff --git a/parser/htmlparser/tests/mochitest/.eslintrc.js b/parser/htmlparser/tests/mochitest/.eslintrc.js
deleted file mode 100644
index 7612459de1fc6..0000000000000
--- a/parser/htmlparser/tests/mochitest/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test", "plugin:mozilla/mochitest-test"],
-};
diff --git a/security/sandbox/test/.eslintrc.js b/security/sandbox/test/.eslintrc.js
deleted file mode 100644
index e05d8ca741c56..0000000000000
--- a/security/sandbox/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: "plugin:mozilla/browser-test",
-};
diff --git a/testing/mochitest/baselinecoverage/browser_chrome/.eslintrc.js b/testing/mochitest/baselinecoverage/browser_chrome/.eslintrc.js
deleted file mode 100644
index 1779fd7f1cf87..0000000000000
--- a/testing/mochitest/baselinecoverage/browser_chrome/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/testing/mochitest/baselinecoverage/plain/.eslintrc.js b/testing/mochitest/baselinecoverage/plain/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/testing/mochitest/baselinecoverage/plain/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/testing/mochitest/tests/python/files/.eslintrc.js b/testing/mochitest/tests/python/files/.eslintrc.js
deleted file mode 100644
index bf2747b9c3a6f..0000000000000
--- a/testing/mochitest/tests/python/files/.eslintrc.js
+++ /dev/null
@@ -1,8 +0,0 @@
-"use strict";
-
-module.exports = {
-  "extends": [
-    "plugin:mozilla/browser-test",
-    "plugin:mozilla/mochitest-test"
-  ]
-};
diff --git a/testing/modules/tests/xpcshell/.eslintrc.js b/testing/modules/tests/xpcshell/.eslintrc.js
deleted file mode 100644
index 69e89d0054ba4..0000000000000
--- a/testing/modules/tests/xpcshell/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/xpcshell-test"],
-};
diff --git a/toolkit/components/aboutmemory/tests/.eslintrc.js b/toolkit/components/aboutmemory/tests/.eslintrc.js
deleted file mode 100644
index f667a57bf5c7a..0000000000000
--- a/toolkit/components/aboutmemory/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test"],
-};
diff --git a/toolkit/components/alerts/test/.eslintrc.js b/toolkit/components/alerts/test/.eslintrc.js
deleted file mode 100644
index 735f687ed1cca..0000000000000
--- a/toolkit/components/alerts/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/browser-test"],
-};
diff --git a/toolkit/components/backgroundhangmonitor/tests/.eslintrc.js b/toolkit/components/backgroundhangmonitor/tests/.eslintrc.js
deleted file mode 100644
index 69e89d0054ba4..0000000000000
--- a/toolkit/components/backgroundhangmonitor/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/xpcshell-test"],
-};
diff --git a/toolkit/components/downloads/test/data/.eslintrc.js b/toolkit/components/downloads/test/data/.eslintrc.js
deleted file mode 100644
index 69e89d0054ba4..0000000000000
--- a/toolkit/components/downloads/test/data/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/xpcshell-test"],
-};
diff --git a/toolkit/components/mozintl/test/.eslintrc.js b/toolkit/components/mozintl/test/.eslintrc.js
deleted file mode 100644
index 69e89d0054ba4..0000000000000
--- a/toolkit/components/mozintl/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/xpcshell-test"],
-};
diff --git a/toolkit/components/mozprotocol/tests/.eslintrc.js b/toolkit/components/mozprotocol/tests/.eslintrc.js
deleted file mode 100644
index 1779fd7f1cf87..0000000000000
--- a/toolkit/components/mozprotocol/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/toolkit/components/narrate/test/.eslintrc.js b/toolkit/components/narrate/test/.eslintrc.js
deleted file mode 100644
index 1779fd7f1cf87..0000000000000
--- a/toolkit/components/narrate/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/toolkit/components/osfile/tests/mochi/.eslintrc.js b/toolkit/components/osfile/tests/mochi/.eslintrc.js
deleted file mode 100644
index f667a57bf5c7a..0000000000000
--- a/toolkit/components/osfile/tests/mochi/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test"],
-};
diff --git a/toolkit/components/pdfjs/test/.eslintrc.js b/toolkit/components/pdfjs/test/.eslintrc.js
deleted file mode 100644
index 1779fd7f1cf87..0000000000000
--- a/toolkit/components/pdfjs/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/toolkit/components/pictureinpicture/tests/.eslintrc.js b/toolkit/components/pictureinpicture/tests/.eslintrc.js
deleted file mode 100644
index 1779fd7f1cf87..0000000000000
--- a/toolkit/components/pictureinpicture/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/toolkit/components/places/tests/.eslintrc.js b/toolkit/components/places/tests/.eslintrc.js
deleted file mode 100644
index f5854291db811..0000000000000
--- a/toolkit/components/places/tests/.eslintrc.js
+++ /dev/null
@@ -1,9 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: [
-    "plugin:mozilla/mochitest-test",
-    "plugin:mozilla/chrome-test",
-    "plugin:mozilla/xpcshell-test",
-  ],
-};
diff --git a/toolkit/components/places/tests/bookmarks/.eslintrc.js b/toolkit/components/places/tests/bookmarks/.eslintrc.js
deleted file mode 100644
index 69e89d0054ba4..0000000000000
--- a/toolkit/components/places/tests/bookmarks/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/xpcshell-test"],
-};
diff --git a/toolkit/components/places/tests/expiration/.eslintrc.js b/toolkit/components/places/tests/expiration/.eslintrc.js
deleted file mode 100644
index 69e89d0054ba4..0000000000000
--- a/toolkit/components/places/tests/expiration/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/xpcshell-test"],
-};
diff --git a/toolkit/components/places/tests/favicons/.eslintrc.js b/toolkit/components/places/tests/favicons/.eslintrc.js
deleted file mode 100644
index 69e89d0054ba4..0000000000000
--- a/toolkit/components/places/tests/favicons/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/xpcshell-test"],
-};
diff --git a/toolkit/components/places/tests/history/.eslintrc.js b/toolkit/components/places/tests/history/.eslintrc.js
deleted file mode 100644
index 69e89d0054ba4..0000000000000
--- a/toolkit/components/places/tests/history/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/xpcshell-test"],
-};
diff --git a/toolkit/components/places/tests/legacy/.eslintrc.js b/toolkit/components/places/tests/legacy/.eslintrc.js
deleted file mode 100644
index 69e89d0054ba4..0000000000000
--- a/toolkit/components/places/tests/legacy/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/xpcshell-test"],
-};
diff --git a/toolkit/components/places/tests/migration/.eslintrc.js b/toolkit/components/places/tests/migration/.eslintrc.js
deleted file mode 100644
index 69e89d0054ba4..0000000000000
--- a/toolkit/components/places/tests/migration/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/xpcshell-test"],
-};
diff --git a/toolkit/components/places/tests/queries/.eslintrc.js b/toolkit/components/places/tests/queries/.eslintrc.js
deleted file mode 100644
index 69e89d0054ba4..0000000000000
--- a/toolkit/components/places/tests/queries/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/xpcshell-test"],
-};
diff --git a/toolkit/components/printing/tests/.eslintrc.js b/toolkit/components/printing/tests/.eslintrc.js
deleted file mode 100644
index 03ec23d8d0ff0..0000000000000
--- a/toolkit/components/printing/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test", "plugin:mozilla/browser-test"],
-};
diff --git a/toolkit/components/reader/test/.eslintrc.js b/toolkit/components/reader/test/.eslintrc.js
deleted file mode 100644
index 1779fd7f1cf87..0000000000000
--- a/toolkit/components/reader/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/toolkit/components/satchel/test/.eslintrc.js b/toolkit/components/satchel/test/.eslintrc.js
deleted file mode 100644
index 845ed3f013b81..0000000000000
--- a/toolkit/components/satchel/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test"],
-};
diff --git a/toolkit/components/thumbnails/test/.eslintrc.js b/toolkit/components/thumbnails/test/.eslintrc.js
deleted file mode 100644
index 6ec615352cc91..0000000000000
--- a/toolkit/components/thumbnails/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test", "plugin:mozilla/xpcshell-test"],
-};
diff --git a/toolkit/components/tooltiptext/tests/.eslintrc.js b/toolkit/components/tooltiptext/tests/.eslintrc.js
deleted file mode 100644
index 1779fd7f1cf87..0000000000000
--- a/toolkit/components/tooltiptext/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/toolkit/components/url-classifier/tests/mochitest/.eslintrc.js b/toolkit/components/url-classifier/tests/mochitest/.eslintrc.js
deleted file mode 100644
index 721e0938af3f0..0000000000000
--- a/toolkit/components/url-classifier/tests/mochitest/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/chrome-test"],
-};
diff --git a/toolkit/components/viewsource/test/.eslintrc.js b/toolkit/components/viewsource/test/.eslintrc.js
deleted file mode 100644
index f667a57bf5c7a..0000000000000
--- a/toolkit/components/viewsource/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test"],
-};
diff --git a/toolkit/components/windowcreator/test/.eslintrc.js b/toolkit/components/windowcreator/test/.eslintrc.js
deleted file mode 100644
index 317abe7b487a5..0000000000000
--- a/toolkit/components/windowcreator/test/.eslintrc.js
+++ /dev/null
@@ -1,9 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: [
-    "plugin:mozilla/browser-test",
-    "plugin:mozilla/chrome-test",
-    "plugin:mozilla/mochitest-test",
-  ],
-};
diff --git a/toolkit/components/windowwatcher/test/.eslintrc.js b/toolkit/components/windowwatcher/test/.eslintrc.js
deleted file mode 100644
index 317abe7b487a5..0000000000000
--- a/toolkit/components/windowwatcher/test/.eslintrc.js
+++ /dev/null
@@ -1,9 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: [
-    "plugin:mozilla/browser-test",
-    "plugin:mozilla/chrome-test",
-    "plugin:mozilla/mochitest-test",
-  ],
-};
diff --git a/toolkit/components/workerloader/tests/.eslintrc.js b/toolkit/components/workerloader/tests/.eslintrc.js
deleted file mode 100644
index f667a57bf5c7a..0000000000000
--- a/toolkit/components/workerloader/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test"],
-};
diff --git a/toolkit/content/tests/widgets/.eslintrc.js b/toolkit/content/tests/widgets/.eslintrc.js
deleted file mode 100644
index 721e0938af3f0..0000000000000
--- a/toolkit/content/tests/widgets/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/mochitest-test", "plugin:mozilla/chrome-test"],
-};
diff --git a/toolkit/modules/tests/modules/.eslintrc.js b/toolkit/modules/tests/modules/.eslintrc.js
deleted file mode 100644
index 69e89d0054ba4..0000000000000
--- a/toolkit/modules/tests/modules/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/xpcshell-test"],
-};
diff --git a/toolkit/mozapps/extensions/test/xpinstall/.eslintrc.js b/toolkit/mozapps/extensions/test/xpinstall/.eslintrc.js
deleted file mode 100644
index 1779fd7f1cf87..0000000000000
--- a/toolkit/mozapps/extensions/test/xpinstall/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test"],
-};
diff --git a/toolkit/mozapps/update/tests/data/.eslintrc.js b/toolkit/mozapps/update/tests/data/.eslintrc.js
deleted file mode 100644
index cdeed96871dde..0000000000000
--- a/toolkit/mozapps/update/tests/data/.eslintrc.js
+++ /dev/null
@@ -1,9 +0,0 @@
-// The files in this directory are shared by mochitest-browser-chrome,
-// mochitest-chrome, and xpcshell tests. At this time it is simpler to just use
-// plugin:mozilla/xpcshell-test for eslint.
-
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/xpcshell-test"],
-};
diff --git a/toolkit/profile/test/.eslintrc.js b/toolkit/profile/test/.eslintrc.js
deleted file mode 100644
index f667a57bf5c7a..0000000000000
--- a/toolkit/profile/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test"],
-};
diff --git a/toolkit/profile/xpcshell/.eslintrc.js b/toolkit/profile/xpcshell/.eslintrc.js
deleted file mode 100644
index a02973d187045..0000000000000
--- a/toolkit/profile/xpcshell/.eslintrc.js
+++ /dev/null
@@ -1,9 +0,0 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/xpcshell-test"],
-};
diff --git a/toolkit/xre/test/.eslintrc.js b/toolkit/xre/test/.eslintrc.js
deleted file mode 100644
index 1e0293e76e801..0000000000000
--- a/toolkit/xre/test/.eslintrc.js
+++ /dev/null
@@ -1,9 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: [
-    "plugin:mozilla/mochitest-test",
-    "plugin:mozilla/browser-test",
-    "plugin:mozilla/xpcshell-test",
-  ],
-};
diff --git a/uriloader/exthandler/tests/mochitest/.eslintrc.js b/uriloader/exthandler/tests/mochitest/.eslintrc.js
deleted file mode 100644
index 7612459de1fc6..0000000000000
--- a/uriloader/exthandler/tests/mochitest/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/browser-test", "plugin:mozilla/mochitest-test"],
-};
diff --git a/widget/headless/tests/.eslintrc.js b/widget/headless/tests/.eslintrc.js
deleted file mode 100644
index 69e89d0054ba4..0000000000000
--- a/widget/headless/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/xpcshell-test"],
-};
diff --git a/widget/tests/.eslintrc.js b/widget/tests/.eslintrc.js
deleted file mode 100644
index 19d9df957ac96..0000000000000
--- a/widget/tests/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test", "plugin:mozilla/mochitest-test"],
-};
diff --git a/xpfe/appshell/test/.eslintrc.js b/xpfe/appshell/test/.eslintrc.js
deleted file mode 100644
index f667a57bf5c7a..0000000000000
--- a/xpfe/appshell/test/.eslintrc.js
+++ /dev/null
@@ -1,5 +0,0 @@
-"use strict";
-
-module.exports = {
-  extends: ["plugin:mozilla/chrome-test"],
-};
-- 
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