So I played around with soundcloud, no problems at all ,as long as the addblocker is disabled

,
At the moment I do not have any problems with FF, I am using FF a lot.
I can't reproduce it!™ EDIT: I have to revert it, here it hangs when I follow a link, and it doesn't load!
If the link loads fast, there is no problem, strange, very strange.
When I restart FF the problem with that link is gone.
Maybe they were too fast to enable that egl feature.
So at the most time of using FF there are no problems, maybe it is an addon like uBlock or something similar causing it!?
EDIT-EDIT:
I can reproduce it, open many links till it starts to get slow and slower to open a link because it needs more and more bandwidth, by stressing the connection. (started FF in the --safe-mode)
LANG=C apt policy firefox
firefox:
Installed: 94.0-1
Candidate: 94.0-1
inxi -G
Graphics: Device-1: Intel Core Processor Integrated Graphics driver: i915 v: kernel
Display: x11 server: X.Org 1.20.11 driver: loaded: modesetting unloaded: fbdev,vesa resolution: 1440x900~60Hz
OpenGL: renderer: Mesa DRI Intel HD Graphics (ILK) v: 2.1 Mesa 21.2.5