Mozilla has rolled out an emergency Firefox 139.0.1 replace after the Tuesday launch precipitated graphical artifacts on PCs with NVIDIA GPUs.
Firefox 139 shipped on Could 27 with options like Full-Web page Translations, however it additionally precipitated graphical artifacts when searching the online in Firefox.
In a Reddit thread, a number of Firefox customers complained that movies would flicker or flash. This concern additionally impacts webpages, together with websites like Instagram.
Mozilla has shortly recognized the basis trigger and has shipped a hotfix with v139.0.1.
In a publish on Bugzilla, Mozilla confirmed that Firefox 139 re-enabled a particular DirectComposition path habits, which precipitated these points.
In earlier releases, Firefox stored a block checklist that stopped Firefox from utilizing DirectComposition on mixed-refresh NVIDIA setup.
Sadly, the block checklist was eliminated with Firefox 139, and it allowed the browser to make use of DirectComposition in a manner that uncovered a graphics driver bug on NVIDIA playing cards below Home windows 10.
While you play a 60 FPS video on the 60 Hz monitor after which scroll or hover over the content material on the high-refresh monitor, elements of the video buffer leak into the opposite window.
That reveals up as flashing artifacts or corruption wherever the web page repaints. The problem would not occur with 30 FPS content material as a result of the body timing traces up with each refresh charges.
Single-monitor or AMD/Intel setups weren’t affected by these points.
Additionally it is price noting that DirectComposition is not the issue, however Mozilla’s implementation clashes with sure GPUs.
“Presently the one factor that makes Firefox particular on this respect is that it makes use of Home windows DirectComposition in a sure manner (Surfaces somewhat than Swapchains) for almost all of internet content material…” a Firefox developer famous in a publish on Bugzilla.
“We have now a brand new code path (the Layer Compositor as it’s known as) which ought to turn into out there for testing in Firefox Nightly within the coming weeks if all goes nicely, we could have an curiosity in testing that on the identical computer systems when it’s prepared, to confirm if any of this flickering happens with that strategy which is rather more just like different browsers.”
Mozilla mounted artifacts in Firefox 139
As per the launch notes, a brand new replace (139.0.1) is now rolling out, and it restores the blocklist, which suggests you need to now not run into artifacts.
“Mounted graphics corruption with sure NVIDIA graphics adapters and a number of screens working at combined refresh charges after updating to Firefox 139,” Mozilla famous on the discharge notes web page.
To put in Firefox 139.0.1, open Settings and examine for updates.
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