Firefox Always Freezing

Ask Fedora
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1

When I try to use Firefox in Fedora, it keeps freezing. It often takes 20 to 60 seconds just to switch tabs. I checked about:performance, and when it finally loaded, it didn’t show any obvious sources of trouble. 1840758 - Something keeps freezing Firefox on Fedora Linux

I used my Firefox account to import most of my settings from MacOS, where it works fine. I then switched a few about:config settings to disable animation, since it triggers my migraines. I am not sure what Wayland is, but I also had to change one of its settings to reduce the frame rate to avoid animation. 1771017 - layout.frame_rate > 0 works on wayland/linux only if widget.wayland.vsync.enabled is false

I can’t see a way to install Mozregression or test using it.

2

Okay, it turns out it is possible to install Mozregression from the command line, but it ignores my profile choice and isn’t safe for me to run that way.

3

My Firefox freezes only after I’ve run out of memory (8Gb) and swap space (about the same). Make sure you have enough of them. bpytop is a good tool for checking the current usage.

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5

Ah. The installer did not set up any swap partition.

6

And it should not by default. If the user wishes a physical swap it is up to them to create the same.