Bug 2544200 - Firefox WebGL on AMD Raphael iGPU causes runaway memory allocation and browser crash on ChatGPT
Summary: Firefox WebGL on AMD Raphael iGPU causes runaway memory allocation and browse...
Keywords:
Status: CLOSED UPSTREAM
Alias: None
Product: Fedora
Classification: Fedora
Component: firefox
Version: 45
Hardware: x86_64
OS: Linux
unspecified
medium
Target Milestone: ---
Assignee: Martin Stransky
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks: F45FinalBlocker, FinalBlocker
TreeView+ depends on / blocked
 
Reported: 2026-09-30 18:54 UTC by Lukáš Růžička (Fedora Quality)
Modified: 2026-10-02 21:28 UTC (History)
8 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2026-10-02 21:28:52 UTC
Type: ---
Embargoed:

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Description Lukáš Růžička (Fedora Quality) 2026-09-30 18:54:35 UTC 
This is a tracking bug for the Blocker Review purposes. The original bug can be read here https://bugzilla.mozilla.org/show_bug.cgi?id=2075894

I can reproduce the bug as well on my Fedora 45 Workstation Beta, with the same version of Firefox. I am not entirely sure that ChatGPT was the culprit, because I had multiple tabs opened when it crashed and I could not start Firefox again because it would always crash. I will update the bug when I have tested it, but I can confirm that the workaround `webgl.disabled=true` helps indeed and FF no longer crashes, with the same amount of tabs.

Reproducible: Always
Comment 1 Lukáš Růžička (Fedora Quality) 2026-09-30 18:57:08 UTC 
Similar bug that matches my situation even better is here https://bugzilla.mozilla.org/show_bug.cgi?id=2076013, I had ChatGPT tab with a Mapbox in it. The workaround works for this, too.
Comment 2 Fedora Blocker Bugs Application 2026-09-30 18:58:37 UTC 
Proposed as a Blocker for 45-final by Fedora user lruzicka using the blocker tracking app because:

 I would like to propose this bug based on the Default application functionality criterion.
Comment 3 Lukáš Růžička (Fedora Quality) 2026-09-30 19:02:39 UTC 
I can now confirm that this happens because of the ChatGPT tab (+Mapbox). Other tabs are fine.
Comment 4 Adam Williamson (Fedora) 2026-10-02 16:41:41 UTC 
It's a feature!
Comment 5 Martin Stransky 2026-10-02 21:28:52 UTC 
Let's track it upstream, not fedora specific.
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