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I need to speed firefox mozilla using iMac

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  • 1 has this problem
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  • Last reply by cor-el

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It used to be fast, but opening mozilla browser is now so slow on my iMac. What can I do to increase the speed on this iMac?

It used to be fast, but opening mozilla browser is now so slow on my iMac. What can I do to increase the speed on this iMac?

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Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
  • Do NOT click the Reset button on the Safe Mode start window

Create a new profile as a test to check if your current profile is causing the problem.

See "Creating a profile":

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.