Performance/Triage/Queries/General

Untriaged

Full Query

ID	Summary	Status
1771902	Compositor CSS animations are not paused in fully occluded windows	NEW
1777875	Lenovo Privacy Guard with "Enable this feature when typing passwords" causing excessive UI responsiveness delays (jank)	NEW
1931717	[meta] High OOM rate and CC time in YouTube	NEW
1939354	RAM too much	UNCONFIRMED
1941716	On a fresh profile, Negative heap-unclassified on "My Bugs" query on b.m.o	NEW
1943419	Fluidd memory leak	UNCONFIRMED
1946913	Consume too much memory	UNCONFIRMED
1949252	Meta Messenger causing high CPU load	UNCONFIRMED
1956850	Ublock Origin increases the time to load a simple demo by 4x and uses ~3x more RAM (time spent in wrappercache, proxy, xraywrapper, minorGC and related stuff)	NEW
1959837	openstreetmap iD editor - slow zooming	NEW
1964374	x.com - Scroll lagging after performing a subsequent query	NEW
1964744	high cpu memory youtube	UNCONFIRMED
1966492	JS isn't minified in Fenix release builds	NEW
1968418	Closing a long-running twitch tab hangs browser for minute(s) (GC in recvConduitClosed of Conduit)	NEW
1975348	EspnCricInfo site creates massive CPU and Memory usage FF140.0.2	UNCONFIRMED
1988312	www.pexels.com - Stuttering/choppy scroll	NEW
1988605	Facebook search bar animation stutters on Firefox	UNCONFIRMED
1988608	Tabs in Firefox refresh when multitasking	UNCONFIRMED
1988776	MutationObserver's getReceiverFor is slow when there are a lot of observers	NEW
1993778	Firefox causes MacBook battery to drain fast	UNCONFIRMED
1994231	Search with bookmark keywords doesn't work when browser's lagging	UNCONFIRMED
1994817	Firefox CPU usage spikes to 100%+ on some sites, particularly when opening new tabs	UNCONFIRMED
2001588	Zooming in and out on https://www.tcm.com/schedule is slow	UNCONFIRMED
2001751	145.0.1 hogs cpu	UNCONFIRMED
2002153	Laggy Youtube in-Video UI	UNCONFIRMED
2002795	Horrible new tab bar	REOPENED
2003583	chase.com - 145.0.2 is incompatible with Chase Online Banking features	UNCONFIRMED
2005548	High ram usage in Youtube site when uBlock Origin is enabled.	UNCONFIRMED
2005635	decathlon.fr website consuming CPU while not displayed	UNCONFIRMED
2006540	Extensions Using 150% CPU During Normal Browsing	UNCONFIRMED
2007610	"This page is slowing down Firefox. To speed up your browser, stop this page." error	UNCONFIRMED
2008529	Automation test has significant performance drop in Firefox 140 and 144	UNCONFIRMED
2008564	UI freezes on long React/DOM sessions despite moderate CPU usage (main-thread JS long tasks)	UNCONFIRMED
2008927	Choppy/stuttering scrolling with touchpad	UNCONFIRMED
2011874	hilversum.bestuurlijkeinformatie.nl - Unable to load the PDF, page is slowing down	NEW
2012760	Jank and freezing on snowplowmap.a2gov.org	NEW
2014947	Firefox uses excessive memory and freezes entire laptop	UNCONFIRMED
2014974	Navigating to a nonexistant URL (http://codegen.py/) spends time on the mainthread and TC thread doing js-parsing.	NEW

38 Total; 38 Open (100%); 0 Resolved (0%); 0 Verified (0%);

Pending needinfos

Full Query

ID	Summary	Status
1961523	Firefox constantly freezes	UNCONFIRMED
1981274	utter-disappointment-with-firefox-performance	UNCONFIRMED
1982631	Google Maps takes forever to load	UNCONFIRMED

3 Total; 3 Open (100%); 0 Resolved (0%); 0 Verified (0%);

Recently opened bugs with performance keywords in the summary

Full Query

ID	Summary	Status
2012642	When leaving a tab inactive on YouTube, once accessed back, the tab has extremely poor performance and may cause crashes	UNCONFIRMED
2013015	Improve IndexedDB performance tests	ASSIGNED
2013158	[wpt-sync] Sync PR 57402 - Map "Performance" to web-features	NEW
2013232	Enabling JS Execution Tracing (tracing) in profiler disables native frames and memory tracing	NEW
2013404	shader-f16 failing to render in WebGPU	NEW
2013634	Firefox fails WPT /css/css-view-transitions/capture-with-offscreen-child-translated.html	NEW
2013655	Add SimpleURLPattern component for faster compression dictionary use	NEW
2013674	memory leak	UNCONFIRMED
2013721	Highlight text selection is slow/inconsistent when Windows 11 taskbar is hidden.	ASSIGNED
2013749	Testcase creating N empty text nodes is 380x slower in Nightly.	NEW
2013750	Testcase creating N empty textnodes and then appending them in bulk is 60x slower in Firefox	NEW
2013766	Firefox seems to have memory leaks when watching YouTube lives	UNCONFIRMED
2013886	Opening about:support janks the parent process for 600ms getting WebGL info	NEW
2013986	Refactor variations of nsLayoutUtils::IsAncestorFrame	NEW
2014160	Cache2 I/O thread 100% CPU due to O(n) linear search in CacheIndexIterator::RemoveRecord with large cache	UNCONFIRMED
2014262	Surface 'Translate' option higher in menu when selecting foreign text	NEW
2014280	RTC.IceConnectionStateChange callbacks can be slow	NEW
2014284	Remove leading slash from NewTabAttributionService endpoint variable	NEW
2014367	[Sample] Bug used as sample for testing file bug functionality in Perfherder	NEW
2014391	[wpt-sync] Sync PR 57560 - Add a fast path for comparing fields in “transition: all”.	NEW
2014418	Clear SharedSubResourceCache on memory pressure?	ASSIGNED
2014454	Minor but annoying bug in translation triggering. Prompted to translate a JSON API consisting of almost entirely numbers into norwegian.	NEW
2014525	CPU goes to 100%, OffscreenCanvasRenderingContext2D.fillText is calling gfxFontGroup::EnsureFontList & gfxFontGroup::AddFamilyToFontList on every call.	UNCONFIRMED
2014544	RTL locales in new onboarding not working (or missing translations)	NEW
2014617	WebGPU code uses `RefPtr` construction unnecessarily in initializer lists	ASSIGNED
2014620	When the translation panel appears and I click the "Not now" button, when I refresh the site, this panel is no longer displayed.	NEW
2014631	[wpt-sync] Sync PR 57580 - Remove and migrate internal tests in fast/dom/elementsFromPoint/	NEW
2014639	Autocad Web crashes in firefox if webGPU is enabled.	UNCONFIRMED
2014677	Google Slides rendering unusably slow	UNCONFIRMED
2014840	Reduce memory allocations for filling simple paths (PathBuilder ops vector, Path)	NEW
2014930	./mach lint -l android-fenix is slow (runs heavy Gradle tasks / build steps)	NEW
2014989	Prototype DOM Tree Translation API	NEW
2014998	WebGPU error in Construct 3 on macOS	UNCONFIRMED
2015006	Testcase creating Map keys is 4x slower, and iterating them is 2x slower	NEW
2015040	Performance tests for security layer	ASSIGNED
2015059	memory-pressure-stop should be relayed to content process	NEW
2015083	Text size cannot be increased for Firefox-translations	NEW
2015166	Drawing a WebGPU canvas to a 2D canvas does a readback	NEW
2015175	Improve Memory summary verbosity and detail inclusion	NEW
2015256	Testcases with json operations are 10x-2x slower in Firefox	NEW
2015295	The "Translate Selection" dialog needs a "Replace button"	UNCONFIRMED
2015300	[wpt-sync] Sync PR 57640 - Don't divide by zero on perfect matches	NEW
2015308	Modified codepen demo (https://codepen.io/robbobfrh84/pen/qBZJbYz?editors=0010) is much slower in Firefox	NEW
2015309	Modified codepen demo (https://codepen.io/shubniggurath/pen/RNaWvdm?editors=0010) is slower in Firefox	NEW
2015312	memory leak in nsCocoaWindow.mm PopupWindow shadowParameters	NEW
2015313	potential memory leak in nsCocoaWindow.mm acceptsFirstMouse	NEW
2015334	memory leak in Cocoa widget touchbar support	ASSIGNED
2015337	potential memory leak in Cocoa widgets text input handling	NEW

48 Total; 48 Open (100%); 0 Resolved (0%); 0 Verified (0%);