Bug 2544200

Summary:	Firefox WebGL on AMD Raphael iGPU causes runaway memory allocation and browser crash on ChatGPT
Product:	[Fedora] Fedora	Reporter:	Lukáš Růžička (Fedora Quality) <lukas.ruzicka>
Component:	firefox	Assignee:	Martin Stransky <stransky>
Status:	CLOSED UPSTREAM	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	45	CC:	gecko-bugs-nobody, jhorak, klaas, rhbz, rstrode, sagitterghostproton.me, stransky, suraj.ghimire7
Target Milestone:	---
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Hardware:	x86_64
OS:	Linux
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Last Closed:	2026-10-02 21:28:52 UTC	Type:	---
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Embargoed:
Bug Depends On:
Bug Blocks:	2406954

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.