Differential Revision: https://phabricator.services.mozilla.com/D198569

Bug 1868772 - Do not launch the crash reporter client if we've already removed the exception handler. r=afranchuk, a=RyanVM

Differential Revision: https://phabricator.services.mozilla.com/D198158

Bug 1867982 - Check if WorkerRunnable::Run runs on top of WorkerThreadPrimaryRunnable::Run in a worker thread.  a=RyanVM

Original Revision: https://phabricator.services.mozilla.com/D199247

Differential Revision: https://phabricator.services.mozilla.com/D199970

Bug 1860065 - Use sLastScreenPoint to restore mouse position after releasing pointer lock;  a=RyanVM

Differential Revision: https://phabricator.services.mozilla.com/D200031

Bug 1855686 - [bug 1877341 on esr115] Reset GLContext TLS current-context caching when calling library MakeCurrent symbols.  a=RyanVM

Original Revision: https://phabricator.services.mozilla.com/D200866

Differential Revision: https://phabricator.services.mozilla.com/D201001

Original Revision: https://phabricator.services.mozilla.com/D200841

Differential Revision: https://phabricator.services.mozilla.com/D201003

Bug 1833020: Disable TestWifiMonitor for intermittent failures r=gstoll,necko-reviewers,kershaw a=test-only

Differential Revision: https://phabricator.services.mozilla.com/D200066

Bug 1871498 - Let FetchDriver::RunAbortAlogrithm() resolving FetchInstance::mPromises by calling FetchObserver::OnResponseEnd(). r=dom-worker-reviewers,smaug a=RyanVM

Bug 1843752 - Explicitly transfer ownership of queued-up OnDataAvailableParams data buffers, a=RyanVM

Differential Revision: https://phabricator.services.mozilla.com/D199233

Differential Revision: https://phabricator.services.mozilla.com/D199380

Bug 1864385 - Block set-cookie from multipart/x-mixed-replace with pref. r=valentin,necko-reviewers a=RyanVM

Differential Revision: https://phabricator.services.mozilla.com/D198479

Simplify the code to use loading=lazy to make the images not block the
load event.

Differential Revision: https://phabricator.services.mozilla.com/D198426

The DirectWrite "bold simulation" has poor results with some fonts;
we already disable it by default for webfonts, to avoid rendering
issues.

As it also works poorly with some of the component layers in Segoe UI
Emoji, let's disable it for COLR fonts as well.

Bug 1868737 - Allow minimal gfx features by default for uncertain configurations. r=jrmuizel,perftest-reviewers,kshampur a=RyanVM

Some features such as the GPU process (except on Android), backdrop
filter (because it always works with Software WebRender), ANGLE (because
it is generally good) and out of process WebGL (we generally want to
remote WebGL for sandboxing purposes) are special, and should not be
disabled simply because we are uncertain about our configuration. In
these situations, disable most features, but keep these enabled by
default.

Bug 1870159 - Use a different string for empty driver versions. r=aosmond,win-reviewers,mhowell a=RyanVM

This lets us distinguish parse failures from empty versions in
telemetry.

The bug occurs because some abspos children are split, but not being reflowed
again in the last column balancing reflow where the available block-size of the
last column might be unconstrained.

This patch makes the callers utilizing `ReflowInput::ShouldReflowAllKids()`
always reflow in the last column balancing reflow to ensure the correctness of
the layout.

Note: the `mIsInLastColumnBalancingReflow` flag is inheriting from parent to
child reflow input, but it will stop at the nested `nsColumnSetFrame` because
the nested one will create its own `ReflowConfig::mIsLastBalancingReflow` and
assign that flag when creating the reflow input for the children.

Bug 1837646 - disable browser_sma_show_migration_wizard.js on mac for frequent failures. r=aryx, a=test-only

Bug 1760081 - Disabled netwerk/test/unit/test_alt-data_simple.js on Windows for having a high failure rate. r=necko-reviewers,kershaw a=test-only

Bug 1817727 - Disable test_filename_sanitize.js on mac because of permafailures. r=aryx, a=test-only

Differential Revision: https://phabricator.services.mozilla.com/D201069

Bug 1878182 - Instantiate Cairo scaled font for ScaledFontBase::GetPathForGlyphs. r=jfkthameApproved for 123 beta 8, thanks. a=pascalc

This bug likely dates back to bug 1584268, which makes it so that Cairo scaled fonts must be
instantiated on demand for their first use. It seems like some StrokeGlyphs machinery got
overlooked and somehow never caused a problem till now.

Differential Revision: https://phabricator.services.mozilla.com/D200472

Differential Revision: https://phabricator.services.mozilla.com/D199418

Backed out changeset eb8c2d5bd1aa (bug 1830071)

Differential Revision: https://phabricator.services.mozilla.com/D197566

	Bug 1830071 - Ensure tasks run across all users in Windows r=bytesized,application-update-reviewers,nalexander a=pascalc

Differential Revision: https://phabricator.services.mozilla.com/D191226

Differential Revision: https://phabricator.services.mozilla.com/D200615

Original Revision: https://phabricator.services.mozilla.com/D198945

Differential Revision: https://phabricator.services.mozilla.com/D199486

Original Revision: https://phabricator.services.mozilla.com/D200245

Differential Revision: https://phabricator.services.mozilla.com/D200813

Backed out changeset 2c8561c8e416 (bug 1873866)

Original Revision: https://phabricator.services.mozilla.com/D199939

Differential Revision: https://phabricator.services.mozilla.com/D200401

Bug 1875621 - SlicedInputStream::Serialize should serialize the outer SlicedInputStream as a pipe in the efficient path.  a=pascalc

Original Revision: https://phabricator.services.mozilla.com/D199852

Differential Revision: https://phabricator.services.mozilla.com/D200437

Differential Revision: https://phabricator.services.mozilla.com/D200784

Backed out changeset 39193ec581e4 (bug 1833814)

Original Revision: https://phabricator.services.mozilla.com/D195549

Differential Revision: https://phabricator.services.mozilla.com/D198576