Mozilla fires off emergency patch to fix Nvidia GPU artifacting bugs in Firefox

[Pelican Press 0]

This is the hidden content, please

• Sign In
• or
• Sign Up

Mozilla fires off emergency patch to fix Nvidia GPU artifacting bugs in Firefox

Mozilla

This is the hidden content, please

• Sign In
• or
• Sign Up

includes a crucial fix for an irritating bug that caused artifacts with Nvidia GPUs in certain setups. This bug was introduced with version 139.0, likely because Mozilla disabled a blocklist that prevented DirectComposition from being used with Nvidia GPUs, and multi monitor setups with different refresh rates.

Mozilla launched

This is the hidden content, please

• Sign In
• or
• Sign Up

on May 27th, introducing a slew of new features, such as custom new tab backgrounds, full-page translation for supported extensions, just to name a few. However, shortly after the update went live, forums and

This is the hidden content, please

• Sign In
• or
• Sign Up

threads were teeming with user complaints of graphical anomalies, glitches, and screen corruption. Essentially, if 60 FPS media is running on the secondary monitor, interacting with the primary high-refresh rate display can induce visual artifacts.

As it turns out, Mozilla removed a blocklist that had previously prevented DirectComposition from being used on certain Nvidia setups, specifically referring to multi-monitor configurations with mixed refresh rates, say 144 Hz and 60 Hz. A workaround for the bug was discovered by several users at

This is the hidden content, please

• Sign In
• or
• Sign Up

, which involved toggling the gfx.webrender.dcomp-video-hw-overlay-win flag to false.

You may like

It’s not entirely clear why Mozilla suddenly removed this specific blocklist. A Mozilla developer indicated that Firefox handles graphical buffers differently from other browsers, using “Surfaces” instead of “Swapchains” with Windows DirectComposition. They also hinted at a new Layer Compositor, which affects the way elements are drawn on your screen, aiming to mimic other browsers more closely. This shift could be the reason the blocklist was initially removed, but it’s hard to be certain.

This problem shouldn’t affect users with Intel or AMD graphics, or those with single-monitor setups. Firefox 139.0.1 solely targets this issue, so don’t expect other fixes or new features. That being said, to address this, you can either manually disable the flag or update your browser by navigating to the menu button (three horizontal lines) at the top-right, then selecting Help, and About Firefox. Firefox will automatically check for updates and download them if any are available.

Follow

This is the hidden content, please

• Sign In
• or
• Sign Up

to get our up-to-date news, analysis, and reviews in your feeds. Make sure to click the Follow button.

Get Tom’s Hardware’s best news and in-depth reviews, straight to your inbox.

This is the hidden content, please

• Sign In
• or
• Sign Up

#Mozilla #fires #emergency #patch #fix #Nvidia #GPU #artifacting #bugs #Firefox

This is the hidden content, please

• Sign In
• or
• Sign Up

This is the hidden content, please

• Sign In
• or
• Sign Up