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Experiencing serious lag after most recent update.

  • 1 reply
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  • Last reply by FredMcD

jjjf
jjjf
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Hello,

I'm using an iMac, running the most recent OS (High Sierra, 10.10.3). After the recent update I'm experiencing a lot of lag with Firefox. If I open Facebook, for example, it takes several seconds to scroll, and it's unable to play two videos simultaneously. This is a new issue that I haven't experienced before. I've already reinstalled Firefox and deleted everything from the cache/cookies, but to no avail. I've also tried Safari and Chrome, and they don't have the issues.

Any help much appreciated.

Hello, I'm using an iMac, running the most recent OS (High Sierra, 10.10.3). After the recent update I'm experiencing a lot of lag with Firefox. If I open Facebook, for example, it takes several seconds to scroll, and it's unable to play two videos simultaneously. This is a new issue that I haven't experienced before. I've already reinstalled Firefox and deleted everything from the cache/cookies, but to no avail. I've also tried Safari and Chrome, and they don't have the issues. Any help much appreciated.

Modified by jjjf

All Replies (1)

FredMcD
FredMcD
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Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Is the problem still there?


https://support.mozilla.org/en-US/kb/firefox-slow-how-make-it-faster

https://support.mozilla.org/en-US/kb/firefox-uses-too-many-cpu-resources-how-fix

https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-ram

https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding