Firefox stops loading webpages/playing videos after being open for around 4.5 hours

SCFHG — Wed, 06 May 2026 01:50:30 GMT

Hi all,

As of recently, since the last update, something peculiar happens when I have Firefox open for around 4.5 hours.

Webpages, and videos stop playing.

The fix: Fully close Firefox, and re-open. The issue goes away.

Anybody experienced this, and what is the permanent fix?

Firefox version: 150.0.1 (64-bit)

OS: Microsoft Windows 11 Pro

OS version: 10.0.26200 Build 26200

Regards

topic Firefox stops loading webpages/playing videos after being open for around 4.5 hours in Discussions