Mozilla has rolled out an emergency Firefox 139.0.1 replace after the Tuesday launch prompted graphical artifacts on PCs with NVIDIA GPUs.
Firefox 139 shipped on Could 27 with options like Full-Web page Translations, but it surely additionally prompted graphical artifacts when shopping the net in Firefox.
In a Reddit thread, a number of Firefox customers complained that movies would flicker or flash. This problem additionally impacts webpages, together with websites like Instagram.
Mozilla has rapidly recognized the basis trigger and has shipped a hotfix with v139.0.1.
In a put up on Bugzilla, Mozilla confirmed that Firefox 139 re-enabled a particular DirectComposition path habits, which prompted these points.
In earlier releases, Firefox saved a block listing that stopped Firefox from utilizing DirectComposition on mixed-refresh NVIDIA setup.
Sadly, the block listing was eliminated with Firefox 139, and it allowed the browser to make use of DirectComposition in a approach that uncovered a graphics driver bug on NVIDIA playing cards beneath 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 exhibits up as flashing artifacts or corruption wherever the web page repaints. The problem does 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.
It’s also 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 approach (Surfaces reasonably than Swapchains) for almost all of net content material…” a Firefox developer famous in a put up on Bugzilla.
“Now we have a brand new code path (the Layer Compositor as it’s known as) which ought to develop into out there for testing in Firefox Nightly within the coming weeks if all goes effectively, we may 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 much 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 implies it is best to not run into artifacts.
“Mounted graphics corruption with sure NVIDIA graphics adapters and a number of displays 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 verify for updates.
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