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Firefox loads page very slowly on random occassions

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Firefox has been loading webpages very slowly at random intervals each day. Sometimes it works fine, other times it can take several minutes for a single page to load. The browser itself also seems to run a bit slowly when this happens as well, it can take more than one click to close it.

I've tried just about everything in [this article], none of it works.

Firefox has been loading webpages very slowly at random intervals each day. Sometimes it works fine, other times it can take several minutes for a single page to load. The browser itself also seems to run a bit slowly when this happens as well, it can take more than one click to close it. I've tried just about everything in [[https://support.mozilla.org/en-US/kb/quick-fixes-if-your-firefox-slows-down this article]], none of it works.

Modified by cor-el

All Replies (2)

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Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or if userChrome.css/userContent.css is causing the problem.

  • switch to the Default System theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window
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Just tried all of that, it didn't really help. It seems to work fine in troubleshoot mode, at least from what I used of it, but after trying everything else out in those articles I have the same problem.