6 ms·

Firefox uses much more of my CPU cycles than Chrome for some reason. I wish it had a good task manager for me to debug the culprit process. I can feel my lapto

Firefox uses much more of my CPU cycles than Chrome for some reason. I wish it had a good task manager for me to debug the culprit process. I can feel my laptop loudly spinning fan, after a long running firefox session. It stops doing this, if I close / restart firefox.

driverdan 7y ago
Do you keep Gmail open? It's poorly optimized for non-Chrome browsers and tends to peg the CPU at seemly random times.
- wyre 7y ago
  I didnt know this, but im not surprised.
- 0az 7y ago
  Honestly, at this point, I don't even use Gmail web: I just use the macOS built-in Mail app (Thunderbird unfortunately doesn't have a friendly UI). If more people switch to Firefox, this might be an additional effect: a rise in the usage of desktop mail clients.
sp332 7y ago
about:performance is not very detailed, but it could help pick out a misbehaving tab.
djanogo 7y ago
You can always quit Firefox process and reopen it again, unlike Chrome, Firefox doesn't auto load all tabs again, so this will kill any scripts running or monitoring in rest of the tabs. This almost always solves my issues.
imurray 7y ago
If you're on linux you could try moving out your ~/.fonts to see if it's a fontconfig problem https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=909818 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=909818 (I've seen variants of this problem on Ubuntu 18.04 LTS.)
Paul-ish 7y ago
If you are on an OSX machine, it may be this bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1404042 https://bugzilla.mozilla.org/show_bug.cgi?id=1404042