1846115
|
|
The debugger can cause webpage lagging
|
Core
|
JavaScript Engine
|
nobody
|
UNCO
|
---
|
2024-05-09
|
1841643
|
|
'tup' cookie causes laggy/janky Google Maps performance when dragging
|
Core
|
Performance
|
acreskey
|
UNCO
|
---
|
2024-01-08
|
1765897
|
|
Performance on https://dragonflight.blizzard.com is not very good
|
Core
|
Graphics: WebRender
|
nobody
|
UNCO
|
---
|
2024-03-22
|
1766063
|
|
Extreme performance drop when multiple windows are open on Ubuntu 21.10
|
Core
|
Widget: Gtk
|
nobody
|
UNCO
|
---
|
2022-08-31
|
1831828
|
|
animation completely glitched on certain screen sizes
|
Core
|
CSS Transitions and
|
nobody
|
UNCO
|
---
|
2023-05-10
|
1886079
|
|
Extremely slow animations and scrolling performance on B2B2go's website
|
Core
|
Graphics
|
nobody
|
UNCO
|
---
|
2024-03-24
|
1819286
|
|
Firefox slows down abysmally after a week or so, having hundreds of tabs open (thousands of tabs in total)
|
Core
|
Widget: Win32
|
davidp99
|
NEW
|
---
|
2024-06-13
|
1827906
|
|
High memory usage and slow/jerky text size increase animation on https://www.sbnation.com/a/17776-football
|
Core
|
Graphics: WebRender
|
nobody
|
NEW
|
---
|
2024-03-22
|
1881384
|
|
Very low framerate on https://www.mozilla.ai/ when at the top of the page
|
Core
|
Graphics
|
nobody
|
NEW
|
---
|
2024-05-09
|
1892367
|
|
3%-5% regression on multiple AWFY-SP2 benchmark suites around 17Apr2024 (mostly on todo-mvc-Deleting- XXXX type benchmarks)
|
Core
|
Performance
|
nobody
|
NEW
|
---
|
2024-06-12
|
1508765
|
|
Firefox is very slow to render poster PDF
|
Firefox
|
PDF Viewer
|
nobody
|
NEW
|
---
|
2023-07-24
|
1515003
|
|
Avoid putting the URL in the tab title when loading an about: page
|
Firefox
|
Tabbed Browser
|
nobody
|
NEW
|
---
|
2024-04-03
|
1595680
|
|
Slightly different values in display lists causing extra picture cache invalidations.
|
Core
|
Graphics: WebRender
|
nobody
|
NEW
|
---
|
2024-05-16
|
1771991
|
|
Jank when opening hamburger menu on YouTube
|
Core
|
Layout
|
nobody
|
NEW
|
---
|
2022-06-23
|
1776131
|
|
wokwi.com - simulations much slower in FF than other browsers
|
Core
|
JavaScript Engine: J
|
nobody
|
NEW
|
---
|
2024-02-15
|
1777744
|
|
Jank when exiting miniplayer on YouTube
|
Core
|
Layout
|
nobody
|
NEW
|
---
|
2022-08-05
|
1792449
|
|
When opening a window, the address bar changes size and moves from right to left, when (Extension) Overflow Button is visible on the Toolbar
|
Firefox
|
Toolbars and Customi
|
nobody
|
NEW
|
---
|
2022-10-31
|
1818402
|
|
Jank when grabbing and dragging carousel
|
Core
|
Graphics: WebRender
|
nobody
|
NEW
|
---
|
2024-04-02
|
1840771
|
|
Jank and checkerboarding when scrolling tweet replies
|
Core
|
Panning and Zooming
|
nobody
|
NEW
|
---
|
2024-04-18
|
1880744
|
|
Leaving devtools (netmonitor) open in a background tab janks the parent process main thread
|
DevTools
|
Netmonitor
|
nobody
|
NEW
|
---
|
2024-06-04
|
1882302
|
|
Navigation for product images slider is not smooth at ebay.com
|
Core
|
Layout
|
nobody
|
NEW
|
---
|
2024-06-11
|
1892850
|
|
Bug Report - Scrolling lags on about:preferences in Firefox Snap (lubuntu 24.04 alpha)
|
Core
|
Widget: Gtk
|
nobody
|
NEW
|
---
|
2024-07-10
|
1387142
|
|
Suppress window animation for New Window
|
Firefox
|
General
|
nobody
|
NEW
|
---
|
2024-04-03
|
1155307
|
|
Very laggy panning and zooming of map on Orbis website
|
Core
|
Graphics: WebRender
|
nobody
|
NEW
|
---
|
2024-04-02
|
1716149
|
|
Opening large data uri based image with "open image in new tab" can be very slow
|
Firefox
|
Tabbed Browser
|
nobody
|
NEW
|
---
|
2024-04-03
|
1772249
|
|
Jank and checkerboarding when scrolling https://www.waterfox.net/
|
Core
|
Graphics: WebRender
|
nobody
|
NEW
|
---
|
2023-03-23
|
1772346
|
|
Slow game performance on jklm.fun
|
Core
|
Graphics: Canvas2D
|
nobody
|
NEW
|
---
|
2022-11-26
|
1774918
|
|
Browser stops responding during animation.
|
Core
|
Disability Access AP
|
nobody
|
NEW
|
---
|
2022-07-10
|
1795684
|
|
BoomChicago.com booking interface slows down entire browser
|
Core
|
Graphics: WebRender
|
nobody
|
NEW
|
---
|
2023-09-26
|
1807367
|
|
Toolbar transitions are slow to tabs tray and 3-dot menu on low-end devices
|
Fenix
|
Toolbar
|
nobody
|
NEW
|
---
|
2023-12-04
|
1812394
|
|
High parent-process CPU usage, with animated balloons SVG background-image
|
Core
|
Graphics: WebRender
|
nobody
|
NEW
|
---
|
2024-04-02
|
1820246
|
|
Extreme lag (almost crash) when loading an animated svg with filters
|
Core
|
Graphics: WebRender
|
nobody
|
NEW
|
---
|
2023-12-21
|
1825361
|
|
Slow panning and zooming on cellmapper.net
|
Core
|
Graphics: Canvas2D
|
nobody
|
NEW
|
---
|
2023-06-02
|
1825391
|
|
Janky carousel on Amazon product page on Moto G Pure
|
Core
|
Layout
|
nobody
|
NEW
|
---
|
2024-04-08
|
1825395
|
|
Janky carousel on Apple India home page on Moto G Pure
|
Core
|
Graphics: WebRender
|
nobody
|
NEW
|
---
|
2024-05-06
|
1831458
|
|
Very high memory usage on Zenni Optical's website
|
Core
|
Performance
|
nobody
|
NEW
|
---
|
2023-05-26
|
1833016
|
|
Very high JS string memory usage and lots of structured-clone-holder, with lag and slowdowns
|
WebExtensions
|
Untriaged
|
nobody
|
NEW
|
---
|
2023-12-04
|
1833620
|
|
sinerider.com is slow
|
Core
|
Graphics: Canvas2D
|
nobody
|
NEW
|
---
|
2023-08-04
|
1838135
|
|
canvas demo (https://www.fxhash.xyz/generative/slug/whispering-depths) is slower with gpu-canvas compared to skia-canvas
|
Core
|
Graphics: Canvas2D
|
nobody
|
NEW
|
---
|
2023-06-29
|
1838402
|
|
Sluggish horizontal scrolling on github.com
|
Core
|
Panning and Zooming
|
nobody
|
NEW
|
---
|
2024-04-18
|
1839242
|
|
svg high cpu usage
|
Core
|
Graphics: WebRender
|
nobody
|
NEW
|
---
|
2023-08-10
|
1880530
|
|
[linkedin.com] Adding multiple contacts in rapid succession feels slower on Firefox Nightly
|
Core
|
Performance
|
nobody
|
NEW
|
---
|
2024-06-18
|
1893904
|
|
Massive jank when scrolling https://frontendmasters.com/blog/the-view-transition-api/
|
Core
|
Graphics: WebRender
|
nobody
|
NEW
|
---
|
2024-05-22
|
1901092
|
|
"Pure CSS 3D Girl" running-person animation is much slower in Firefox than Chromium/WebKit
|
Core
|
Graphics: WebRender
|
nobody
|
NEW
|
---
|
2024-07-09
|
1786918
|
|
too much sync decoding of images on https://martyr.shop/products/sealed-bags
|
Core
|
Graphics: ImageLib
|
tnikkel
|
NEW
|
---
|
2023-06-02
|
1823474
|
|
Divi's intensive use of shadows on its demonstration page cause slow performance issues in Firefox on some graphics drivers
|
Core
|
Graphics: ImageLib
|
tnikkel
|
NEW
|
---
|
2024-03-18
|
1762743
|
|
Twitch performance with high chat traffic is really poor
|
Core
|
Performance
|
nobody
|
RESO
|
WORK
|
2022-07-26
|
1818407
|
|
Sites like GrubHub and Doordash with lots of imagery, carousels, and interactive elements load very slowly on Firefox
|
Core
|
CSS Parsing and Comp
|
nobody
|
RESO
|
WORK
|
2023-03-27
|
1826704
|
|
backface-visibility: hidden causes animation frozen with javascript longtask
|
Core
|
Graphics: WebRender
|
nobody
|
RESO
|
DUPL
|
2024-01-25
|
1847600
|
|
vsync keeps running if the shopping sidebar is hidden - should tell gecko when it's not needed/visible
|
Firefox
|
Shopping
|
gijskruitbosch+bugs
|
RESO
|
FIXE
|
2024-01-18
|
1767570
|
|
https://nx.dev animation is very slow (SVG filter and animation)
|
Core
|
Graphics: WebRender
|
gwatson
|
RESO
|
FIXE
|
2022-08-23
|
1759630
|
|
Jank when hovering cursor over video on https://www.youtube.com/
|
Core
|
Audio/Video
|
nobody
|
RESO
|
WORK
|
2023-04-21
|
1790897
|
|
Jank when scrolling Olive Garden menu
|
Core
|
JavaScript Engine
|
nobody
|
RESO
|
WORK
|
2023-12-01
|
1794442
|
|
Drawing once to OffscreenCanvas cripples performance for subsequent drawImage calls
|
Core
|
Graphics: Canvas2D
|
aosmond
|
RESO
|
FIXE
|
2022-10-20
|
1847584
|
|
Hidden remote browser with an animation keeps vsync going indefinitely
|
Core
|
Layout
|
emilio
|
RESO
|
FIXE
|
2024-03-27
|
1798592
|
|
Slow backdrop-filter:blur on https://misskey-hub.net/en/ (stutters significantly more on Firefox for Android than on Chrome)
|
Core
|
Graphics: WebRender
|
gwatson
|
RESO
|
WORK
|
2023-11-19
|
1770606
|
|
Browser freezing jank, when viewing website with 95160 elements (chrome does not freeze)
|
Core
|
Disability Access AP
|
jteh
|
RESO
|
FIXE
|
2023-11-13
|
795474
|
|
Pauses in CSS transition demo
|
Core
|
Graphics
|
nobody
|
RESO
|
WORK
|
2023-02-22
|
1742043
|
|
Poor scrolling performance on top10.netflix.com
|
Core
|
Graphics: WebRender
|
nobody
|
RESO
|
WORK
|
2024-04-03
|
1806207
|
|
PokerQuest locks up tab
|
Core
|
Graphics
|
nobody
|
RESO
|
WORK
|
2024-04-08
|
1869505
|
|
Screen transition (CSS transition) performance on Puzzowl game has regressed badly in Firefox for Android
|
Core
|
Graphics
|
nobody
|
RESO
|
INVA
|
2023-12-14
|
1880752
|
|
YouTube and other web-based video sites sometimes dropping frames
|
Core
|
Audio/Video
|
nobody
|
RESO
|
FIXE
|
Fri 13:28
|
1891017
|
|
Scroll-linked animation has started to lag and stutter, especially with touchpad kinetic scroll
|
Core
|
CSS Transitions and
|
nobody
|
RESO
|
WORK
|
2024-04-26
|
1661253
|
|
Pdf page white while loading on increased zoom levels
|
Firefox
|
PDF Viewer
|
cdenizet
|
VERI
|
FIXE
|
2023-05-09
|