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by cassianoleal 1433 days ago
Have you looked into the about:performance page? It might give you clues.
1 comments
ayberk 1433 days ago
I have, but nothing stood out. I even tried Firefox Profiler (which is pretty good btw, kudos to the team), and it looks like DOM processing and renderer both spend a lot of CPU. But alas I'm not a frontend developer and have no incentive to dive deeper :)
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cassianoleal 1432 days ago
It could be specific websites. Google web apps are notoriously hostile to Firefox.

I leave Javascript off by default on uBO and only allow it selectively when I have something to gain on each website.

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