Differential Revision: https://phabricator.services.mozilla.com/D151558

As per:

 * https://github.com/whatwg/html/issues/7830
 * https://github.com/whatwg/html/pull/8087

Replace the internal preventFocusRing with the new flag.

Differential Revision: https://phabricator.services.mozilla.com/D151326

Bug 1777507 - Adjust Multistage Spotlight container style to handle new MR 50-50 template designs r=pdahiya

Differential Revision: https://phabricator.services.mozilla.com/D151170

This doesn't change behavior but makes the next patch simpler, and makes
the ignore-scrollframe and non-ignore-scrollframe code-paths match.

Differential Revision: https://phabricator.services.mozilla.com/D151473

Differential Revision: https://phabricator.services.mozilla.com/D151430

Backed out changeset 2517efe4191b (bug 1777972)
Backed out changeset 8580c5c39eec (bug 1777972)
Backed out changeset a3211c84154b (bug 1777972)

Differential Revision: https://phabricator.services.mozilla.com/D150691

Now that we have fixed our FxMS schemas in bug 1771073, we can start to tighten
up our schemas again. Specifically, we need to be able to accept an empty
message object to support the removal of Feature.enabled in Nimbus.

Differential Revision: https://phabricator.services.mozilla.com/D150690

Differential Revision: https://phabricator.services.mozilla.com/D150279

Bug 1773907, don't clear the extension on the possible filename if we don't have one to replace it with, r=mhowell

The issue here is that ShouldModifyExtension returns Replace because the content type isn't known.

Differential Revision: https://phabricator.services.mozilla.com/D151427

Bug 1778818 - Add index to are-we-esmified-yet job, and add commit hash and date to the JSON. r=marco

Differential Revision: https://phabricator.services.mozilla.com/D151426

Differential Revision: https://phabricator.services.mozilla.com/D151535

be -> 977d265255721bd348a3e51099716420230e5ab0
cy -> 1d3b91a42df4d2489f67e721bf4d99918b4abd24
en-CA -> b895dd9b521c5c79f6be6f25bfe30146b0aeaa90
fr -> 6882ca7fa00f38b0d3bcad53e21c89cb9abed6eb
fy-NL -> 2269e2bcef6b4938cd737e003bdd833270e3b52b
id -> afc81687a7b37f6688ec80788e287328b31eac9c
km -> 068e2093c0c15d174f54ae4c9dd7e3ebeb436cee
nb-NO -> 7397a2677ff49d899bb5c83e0d2581cdf9bfffff
nl -> 07b5f302c460e1f504318db4b53e42b8cd0bd265
ru -> b9e247ebebf679d807f9643259befbb3e190b25b
tg -> a9fb06033f6cb09805b9560ffdd209472193dbf4

Bug 1770329 - revamp the GPT SmartBlock shim to more correctly handle slot placement; r=ksenia,webcompat-reviewers

Differential Revision: https://phabricator.services.mozilla.com/D151526

Differential Revision: https://phabricator.services.mozilla.com/D150756

Differential Revision: https://phabricator.services.mozilla.com/D151500

Bug 1778220 - disable browser_test_zoom.js on Linux_64 & Win for frequent failures. r=intermittent-reviewers,MasterWayZ DONTBUILD

Differential Revision: https://phabricator.services.mozilla.com/D151434

With the new description strings added in bug 1774688, it's easier for the
explainer widget to run into the video controls. Making it wider should
make that problem less likely, and also make it read a bit better now.

Differential Revision: https://phabricator.services.mozilla.com/D151415

Backed out changeset 47dea14575f1 (bug 1764349) for failing devtools at browser_net_stacktraces-visibility.js on a CLOSED TREE

Backed out changeset b6c4c386f1a6 (Bug 1777486)
Backed out changeset 195cc2de8433 (Bug 1777486)
Backed out changeset 20c746fb1648 (Bug 1777486)
Backed out changeset d5fd8173d62d (Bug 1777486)
Backed out changeset 6d758fab5a3e (Bug 1777486)
Backed out changeset e938b601ba15 (Bug 1777486)
Backed out changeset 0c4ea0b9416b (Bug 1777486)
Backed out changeset 0559c53cc668 (Bug 1777486)
Backed out changeset eea573d3a9f9 (Bug 1777486)
Backed out changeset 9ce3a6496a49 (bug 1777486)
Backed out changeset b0867652fc48 (bug 1777486)

Differential Revision: https://phabricator.services.mozilla.com/D151435

Differential Revision: https://phabricator.services.mozilla.com/D151482

Differential Revision: https://phabricator.services.mozilla.com/D150102

Differential Revision: https://phabricator.services.mozilla.com/D151528

This refactors the extra check to make it clearer what's going on and adds a
simple test case for the issue.

Differential Revision: https://phabricator.services.mozilla.com/D151508

This adds ModuleStatus::EvaluatingAsync, splitting it off from
ModuleStatus::Evaluated. This allows us to rewrite parts of the code to be
closer to the spec.

Depends on D151506

Differential Revision: https://phabricator.services.mozilla.com/D151507

I originally thought adding an extra status would allow for stronger assertions
but now I think it has made state checks more verbose and harder to compare
with the spec.

This patch makes ModuleObject::status return ModuleStatus::Evaluated when the
status is Evaluated_Error so that this method matches the spec's concept of the
value of the ModuleStatus field.

This turned up one place where we diverge from the spec. In ModuleEvaluate step
3 we don't get the cycle root if we are in the error state. This is currently
required otherwise some tests fail. This patch preserves the current behvaiour,
which is now explicit.

Differential Revision: https://phabricator.services.mozilla.com/D151506

Bug 1771709 part 3 - Split some ReadSlot functions into separate ReadSlot and MissingProp versions. r=iain

Emitting guards for (and load of) a data property is very different from what we
emit for missing properties. By separating these cases we can remove some uses of
`Maybe<>`.

Differential Revision: https://phabricator.services.mozilla.com/D150113

Differential Revision: https://phabricator.services.mozilla.com/D150112

Also rename to `NativeGetPropKind` so we don't have to use the long name everywhere.

Differential Revision: https://phabricator.services.mozilla.com/D150111

Bug 1777674 - Add missing `<cstdint>` include to support `GCC 13` (it no longer includes it implicitly) r=firefox-build-system-reviewers,nalexander

Differential Revision: https://phabricator.services.mozilla.com/D151411

Enable clearing of network resources on all layers(frontend, resource layer, server) when the
user click the clear button.

Differential Revision: https://phabricator.services.mozilla.com/D148694

Bug 1776802 - Remove obsolete lines from harfbuzz moz.build and enable warnings-as-errors. r=jfkthame

Depends on D150437

Differential Revision: https://phabricator.services.mozilla.com/D150438

Differential Revision: https://phabricator.services.mozilla.com/D150437

Differential Revision: https://phabricator.services.mozilla.com/D148353

Bug 1767295 - [remote] Extend unload timeout for navigation on slow platforms r=webdriver-reviewers,whimboo

Differential Revision: https://phabricator.services.mozilla.com/D151072

Backed out changeset 8d3cd97887d1 (bug 1392125) for causing failures at browser_ext_sessions_forgetClosedTab. CLOSED TREE