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Current Desktop beta cycle:
135
Uplifts by Product
94 uplifts
Core
34
Firefox
19
Fenix
14
N/A
13
Toolkit
8
Testing
2
GeckoView
1
WebExtensions
1
DevTools
1
Data Platform and Tools
1
135.0b1
1 bug uplifted
(contains all the patches landed during the nightly cycle)
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OOM | small
(24.58%)
Known top crash
OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC
(8.94%)
1472062
OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | mozilla::BitSet<T>::FindNext
(6.15%)
nsStyleFont::nsStyleFont
(4.47%)
NS_IsMainThread
(2.79%)
TppRaiseInvalidParameter
(2.79%)
EdgePool::Iterator::operator*
(2.23%)
Uplifts and Backouts
Bug
Component
Summary
1921951
Sidebar
Vertical tabs list does not scroll to show new background tabs
135.0b2
4 bugs uplifted
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OOM | small
(16.38%)
Known top crash
OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC
(4.78%)
1472062
OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | JS::CallbackTracer::onEdge
(4.44%)
1891944
InitializeNSSWithFallbacks
(2.73%)
1834770
AsyncShutdownTimeout | AddonManager: Waiting to start provider shutdown. | AddonRepository Background Updater
(2.39%)
1841444
mozilla::dom::AbstractRange::UpdateCommonAncestorIfNecessary
(2.39%)
1921691
OOM | large | alloc::raw_vec::handle_error
(2.05%)
1906769
Uplifts and Backouts
Bug
Component
Summary
1936654
Onboarding
Prevent set to default prompt being re-displayed each time theme option is changed on theme card
1937652
Performance
run browsertime tests on macosx 14.70
1939454
Onboarding
[Experiment] The `select_theme` event reports `"theme_option": "theme_system"` regardless of the selected option in the onboarding
1939978
General
migrate mochitest browser-media from macosx 10.15 -> 14.70
135.0b3
21 bugs uplifted
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OOM | small
(14.98%)
Known top crash
OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | CCGraphBuilder::AddNode
(4.56%)
1891902
OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC
(3.67%)
1472062
XREMain::XRE_main
(2.98%)
1909700
OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::gc::TraceEdgeInternal
(2.58%)
1472062
js::gc::detail::CellHasStoreBuffer
(2.38%)
1541905
shutdownhang | mozilla::SpinEventLoopUntil | nsThread::WaitForAllAsynchronousShutdowns | nsThreadManager::ShutdownNonMainThreads
(2.08%)
1524247
Uplifts and Backouts
Bug
Component
Summary
1919568
Form Autofill
I cannot disable the Save and fill addresses feature
1932549
Theme
[win10] App Menu options are not visible when hovered with High Contrast#1 Windows theme and Firefox System theme
1934520
Inspector
Inspector breaks when opened after an XML file with an invalid embedded XSLT has been shown
1936675
Audio/Video: cubeb
Crash in [@ AAudioStream_getFramesWritten.cfi]
1936851
Telemetry
Crash in [@ mozilla::ipc::PortLink::SendMessage | IPC_Message_Name=PContent::Msg_FOGData]
1936904
Security: PSM
add nimbus feature for certificate transparency to android
1938121
Address Bar
Firefox Translation shows blank square
1938927
CSS Parsing and Computation
Cyclic dependency on a custom property with an em unit breaks unrelated custom properties using ems
1939295
DOM: Networking
Lots of ghost windows accumulating for google origins via FetchStreamReader
1939619
View Source
Syntax highlighting of HTML source code is broken
1939891
Layout
Allow remaining hard-coded XUL frames (like <xul:image>) to be out of flow.
1939981
Request Handling
Bug in WebExtension DNR "initiatorDomains" condition
1940212
CSS Parsing and Computation
Firefox crashes with the following CSS ::marker {:has(&){}}
1940278
DOM: Editor
Space character disappears from Google Calendar description, when typing after deleting the last word
1940329
Address Bar
Custom search engines don't work when keyword.enabled is set to false
1940508
Networking: HTTP
ESR 128.6.0 Crash in [@ mozilla::net::nsHttpConnection::HandshakeDoneInternal]
1940533
Search
controls on web pages no longer work with latest update. Right mouse, open link in new tab does not work. How do I roll back to previous version?
1937694
N/A
N/A
1936613
N/A
N/A
1936982
N/A
N/A
1939063
N/A
N/A
135.0b4
14 bugs uplifted
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OOM | small
(13.71%)
Known top crash
OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | mozilla::BitSet<T>::FindNext
(4.40%)
OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC
(4.10%)
1472062
OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::gc::GCRuntime::requestMajorGC
(2.80%)
1930016
js::gc::detail::CellHasStoreBuffer
(2.54%)
1541905
mozilla::dom::Selection::SelectFrames
(1.64%)
1907464
js::gc::HeaderWord::get
(1.60%)
1895101
Uplifts and Backouts
Bug
Component
Summary
1881185
Audio/Video: Playback
Crash in [@ put_8tap_4h_43]
1917184
XPCOM
MemoryTelemetry::GatherReports should not run in idle processes
1934302
General
schema error in `firefox_installer.install_v1` for windows_ubr
1936294
DOM: UI Events & Focus Handling
Document focus lost when tab changes from non-remote to remote
1937373
App Links
open in another app doesn't do anything. it stays there even after multiple presses
1937842
Translations
Update language tag validity and normalization check in GeckoViewTranslations.sys.mjs to accommodate language script tags
1939665
Disability Access APIs
Perma [tier 2] gfx/layers/apz/test/mochitest/browser_test_position_sticky.js | Uncaught exception in test bound - AbortError: Actor 'SpecialPowers' destroyed before query 'Spawn' was resolved
1939736
App Links
Prompt abuser should support customized timeout
1940277
Search
Add custom search engine icons urls into Fenix
1940620
DOM: Editor
The trealing white-space disappears at typing text after IME composition started after a trailing white-space but canceled
1940992
Privacy: Anti-Tracking
Enable captcha detection regardless of data reporting pref on Android
1941134
CSS Parsing and Computation
Crash in [@ mozilla::ErrorLoadingSheet] from designmode.css
1940804
N/A
N/A
1940162
N/A
N/A
135.0b5
24 bugs uplifted
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Hide bug fixes
OOM | small
(12.80%)
Known top crash
OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | mozilla::BitSet<T>::FindNext
(4.04%)
OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC
(3.79%)
1472062
mozilla::mscom::ProcessRuntime::InitInsideApartment
(3.74%)
1930846
CrashChannel::OpenContentStream
(2.51%)
1919214
OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::gc::TraceEdgeInternal
(2.22%)
1472062
js::gc::detail::CellHasStoreBuffer
(2.17%)
1541905
Uplifts and Backouts
Bug
Component
Summary
1897837
CSS Parsing and Computation
New wpt failures in /css/css-color/parsing/color-valid-relative-color.html
1915589
DOM: Performance APIs
fanczs.com - The page does not load
1916849
Layout: Grid
[css-grid] Firefox fails to grow grid area to fit content, when its track sizing function is minmax(min-content, 1fr)
1928997
Address Bar
Tabs icon needs to be updated according to Figma design
1934807
DOM: Navigation
Frameset: anchor with target in another frame does not scroll to target when pressed
1938124
Application Update
No update notification shown in/on the Application Menu when using 2 or more profiles opened even though the values for badgeWaitTime and mustiSessionInstallLockouttimeoutMs have expired
1938244
Address Bar
Intermittent macosx1100 [tier 2] browser/components/urlbar/tests/browser/browser_searchModeSwitcher_telemetry.js | single tracking bug
1938570
Audio/Video: cubeb
Tune buffering levels in AAudio backend
1939266
Onboarding
[Experiment] Themes should not be saved when choosing to skip the card
1939415
New Tab Page
Major layout shift on New Tab page coming from IAB banner
1939691
DOM: Navigation
re-enable back-button interventions by default in all channels
1940029
CSS Parsing and Computation
[css-color] Channel keywords can't be used as division denominators in calc nodes.
1940149
Password Manager
Add showToAllBrowsers as a setPref variable in the nimbus feature manifest
1940653
DOM: Editor
Pasting plaintext into the filed in discussions.apple.com gets lost the containg line breaks
1940698
General
Full-screen notification doesn't show up anymore.
1940733
Audio/Video: cubeb
AAudio cubeb backend truncates the end of an audio stream
1940739
Onboarding
Remove secondary button for Toolbar onboarding card
1940763
Crash Reporting
Crash Reporter window fails to open after a crash in some localized builds
1940774
Onboarding
First session ping submission does not include some attribution data
1940988
Firefox View
Timestamp and a three dot menu are not displayed for items under "Tabs from other devices" in Firefox View Next tab
1941041
Networking
Enable mlkem768x25519 in h3 in release
1941249
New Tab Page
Follow/unfollow UI in cards sections are inaccessible with a dark background
1938615
N/A
N/A
1939583
N/A
N/A
135.0b6
17 bugs uplifted
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OOM | small
(12.59%)
Known top crash
OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::gc::GCRuntime::requestMajorGC
(7.60%)
1930016
OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC
(4.46%)
1472062
js::gc::detail::CellHasStoreBuffer
(2.52%)
1541905
js::frontend::CompilationAtomCache::getExistingStringAt
(1.84%)
1835043
js::gc::HeaderWord::get
(1.57%)
1895101
mozilla::RestyleManager::ElementStateChanged
(1.47%)
1936213
Uplifts and Backouts
Bug
Component
Summary
1925235
Address Bar
Searchmode defaults to Google after browser restart
1929956
Toolbar
[Toolbar Redesign] Empty tab counter displayed when swiping to switch tabs on Samsung GalaxyZ Fold 4 (Android 13) and phone devices in landscape mode
1938228
New Tab Page
IAB Banner's dismiss button needs to be clicked twice to trigger BLOCK_URL
1938347
Onboarding
Theme option in Onboarding is not saved after exiting and returning to the app
1938489
DOM: Forms
[REGRESSION] :checked pseudo-selector not working with dynamically inserted DOM elements
1939719
Session Restore
6.37% sessionrestore_no_auto_restore (Linux) regression on Mon December 30 2024
1940217
Machine Learning
Set the default dtype to `q8`
1940575
Sync
Update experimental signed out icon variants with cutouts
1941210
DOM: Networking
`new Response(new ReadableStream()).text()` can be aborted too soon by cycle collection
1941362
Onboarding
Remove skip_toolbar_placement from metrics.yaml
1941512
Machine Learning
allow translation in the web ext
1941520
DOM: Editor
Bug 1940278 makes fastmail composer hang on paste
1941827
DOM: Editor
Assertion failure: editingHost, at /editor/libeditor/HTMLEditor.cpp:7886
1941923
New Tab Page
Update hover color of unfollow button
1939710
N/A
N/A
1940994
N/A
N/A
1938469
N/A
N/A
135.0b7
13 bugs uplifted
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XREMain::XRE_main
(7.14%)
1909700
AsyncShutdownTimeout | IOUtils: waiting for profileBeforeChange IO to complete | CrashMonitor: Writing notifications to file after receiving profile-before-change and awaiting all checkpoints written
(5.71%)
nsINode::GetParentNode | nsMutationReceiver::ContentAppended
(5.71%)
1782501
OOM | small
(4.29%)
Known top crash
OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | js::AutoEnterOOMUnsafeRegion::crash | js::gc::AllocateTenuredCellInGC
(4.29%)
1472062
OOM | unknown | js::AutoEnterOOMUnsafeRegion::crash_impl | mozilla::BitSet<T>::FindNext
(4.29%)
js::gc::detail::CellHasStoreBuffer
(4.29%)
1541905
Uplifts and Backouts
Bug
Component
Summary
1934611
Logins
"Add password" page is still displayed after switching to another app and returning back
1940163
Sidebar
Add telemetry probe to distinguish between panel toggles coming from the old and new sidebar
1940772
Crash Reporting
[Win 11 24H2] The comment section in Crash Reporter is displayed incorrectly
1941030
PDF Viewer
pdfjs.enableScripting does not exist on all Android browsers
1941075
Layout: Positioned
Modal (dialog opened with .showModal()) doesn't apper on screen when it has the style: "height: -moz-available"
1941523
New Tab Page
The New Tab page has a large horizontal scrollbar at certain screen sizes when sections are enabled
1941609
General
[Fenix PDF] Revert behaviour to make PDFs from Fenix downloads open in Fenix
1941776
Password Manager
"Manage passwords" in the credential management UI is not aligned with the rest of the dropdown
1941875
Privacy: Anti-Tracking
Disable captcha detection and ping submission
1942037
Translations
AVX-VNNI is not used when AVX512 is enabled
1942335
Graphics: Text
Disable force-GDI-classic-mode rendering of certain fonts on Windows for release channels
1932555
N/A
N/A
1936844
N/A
N/A
135.0b8
No uplifts
(upcoming beta, not shipped yet)
Uplifts and Backouts
Bug
Component
Summary