2mo ago

Using Radeon HD 5450 and Firefox ESR (128.10.1esr - 64-bit) on Debian 12. Javascript pop-ups appear very slowly

Is this issue related to my ancient 15-year-old graphics card, my browser, or something else?

24 comments

Just my troubleshooting tips:
Can you run a benchmark, maybe this one, so we can see it it's really a general thing not just something on that website? Also we can compare it to other computers, or you can see if changing a setting helps at all.
Can you see something strange in about:processes? Shift+Esc is its keyboard shortcut.
Can you try it in other browsers? Something Chrome like (Chromium, Brave, Vivaldi). Does this happen there as well?
- Can you run a benchmark, maybe this one
  Can you see something strange in about:processes?
  I can't find anything suspicious but here's a snippet of it:
  Can you try it in other browsers?
  I used Ungoogled Chromium and it opens the pop-ups smoothly (so Firefox is causing the problem):
  Clip
  
  Why the benchmark is at 90fps? What happens if you lower your monitor refresh rate to 60?
Why are you using the ESR version?
I would either add the Mozilla repo or install the Flatpak
Edit: I saw your other comments
What desktop are you on?
- I have Flatpak Firefox and it's giving me the same issue as Firefox ESR.
  I'm using Firefox ESR because Flatpak Firefox started freezing after a couple of updates and ESR is super stable.
  As for my desktop: Gnome - X11
  
  Have you tried switching to Wayland?
  Log out and select the Wayland
One thing, always use hardware acceleration.
Does it get better if you set in about:config:
dom.ipc.processCount and dom.ipc.processCount.webIsolated to your number of threads on your cpu
gfx.webrender.all to true
fission.autostart to true
I think it would, in my suspicion, make a better use of your cpu (the threadpool would be more efficient in the processcount), using the new renderer (webrender) and possibly make it a little more secure with one thread per website (or something, i don't remember exactly) using fission.
Edit: An explanation on webrender
- Making those changes didn't resolve the problem
  
  Can you test a newer version of firefox? I have 128 ESR on my work laptop and it's slow there too, it might be this.

24 comments