Rebase tor-browser onto 143

Merge Info

Issues

Resolves

• #44151

Merging

Target Branches

• tor-browser - !fixups to tor-browser-specific commits, new features, security backports
• base-browser and mullvad-browser - !fixups to base-browser-specific commits, new features to be shared with mullvad-browser, and security backports
  • ⚠️ IMPORTANT: Please list the base-browser-specific commits which need to be cherry-picked to the base-browser and mullvad-browser branches here

Target Channels

• Alpha: esr140-15.0
• Stable: esr128-14.5
• Legacy: esr115-13.5

Backporting

Timeline

• No Backport (preferred): patchset for the next major stable
• Immediate: patchset needed as soon as possible (fixes CVEs, 0-days, etc)
• Next Minor Stable Release: patchset that needs to be verified in nightly before backport
• Eventually: patchset that needs to be verified in alpha before backport

(Optional) Justification

• Security update: patchset contains a security fix (be sure to select the correct item in Timeline)
• Censorship event: patchset enables censorship circumvention
• Critical bug-fix: patchset fixes a bug in core-functionality
• Consistency: patchset which would make development easier if it were in both the alpha and release branches; developer tools, build system changes, etc
• Sponsor required: patchset required for sponsor
• Localization: typos and other localization changes that should be also in the release branch
• Other: please explain

Upstream

• Patchset is a candidate for uplift to Firefox
• Patchset is a backport from Firefox
  • Bugzilla link:
  • Upstream commit:

Issue Tracking

• Link resolved issues with appropriate Release Prep issue for changelog generation

Review

Request Reviewer

• Request review from an applications developer depending on modified system:
  • NOTE: if the MR modifies multiple areas, please /request_review all the relevant reviewers
  • accessibility : henry
  • android : clairehurst, dan
  • build system : boklm
  • ci/cd: brizental, henry
  • extensions : ma1
  • firefox internals (XUL/JS/XPCOM) : jwilde, ma1
  • fonts : pierov
  • frontend (implementation) : henry
  • frontend (review) : donuts, morgan
  • localization : henry, pierov
  • macOS : clairehurst, dan
  • nightly builds : boklm
  • rebases/release-prep : brizental, clairehurst, dan, ma1, pierov, morgan
  • security : jwilde, ma1
  • signing : boklm, morgan
  • updater : pierov
  • windows : jwilde, morgan
  • misc/other : pierov, morgan

Change Description

• BB 41459: WebRTC fails to build under mingw (Part 2)
  • rtc:: import is now webrtc::
  • TODO: Run windows build with --enable-webrtc to verify resolutions still build.
• BB 42730: Patch RemoteSettings to use only local dumps as a data source
  • Conflicts in services/settings/RemoteSettingsClient.sys.mjs due to Bug 1981367
  • Audit ticket: #44154
• [android] Disable features and functionality
  • A few minor conflicts. One of them in SiteSettingsFragment.kt brought to my attention Bug 1971290.
  • Audit ticket: #44155
  • Bug 1978008 added new imports of AdvertisingIdClient, which I had to remove.
• TB 34403 [android]: Disable Normal mode by default.
  • Bookmarks code has been moved and deleted: Bug 1955692. I dropped our changes, but we will have to bring them back.
  • Audit ticket: #44156
• [android] Modify UI/UX
  • Same note on bookmarks and Bug 1955692
• TB 42191: [android] Temporary StrictMode relaxation to clear the thumbnail cache.
  • Had to modify this patch due to Bug 1977891
  • Audit ticket: #44160
• BB 31575: Disable Firefox Home (Activity Stream)
  • Had to add a fixup! due to calls to a new newtab component in tabbrowser. Introduced by https://bugzilla.mozilla.org/show_bug.cgi?id=1978161. No audit ticket required, IMO.
• BB 44045: Disable ML features.
  • As predicted toolkit/components/formautofill/MLAutofill.sys.mjs was removed by Bug 1977600. No audit ticket required, IMO.
  • linkPreviewShift and linkPreviewShiftAlt have been removed by Bug 1954267.
  • Audit ticket:

How Tested

Related to #44151