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Firefox starts slow, but runs fine in safe mode with all addons running - why?

  • 3 replies
  • 6 have this problem
  • 540 views
  • Last reply by philipp

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So...suddenly my Firefox (v. 38.0.1) is really laggy, with slow-to-respond buttons, scrolling etc. So I manually disable all addons, but to no avail. Then I try safe mode and it runs fine. Great. So I enable my addons again one by one, until they're all enabled and it's still running fine. My conclusion: it can't be the addons. What could it be that's causing this? I have updated all my addons and only have Silverlight, Flash, Google updater, Shockwave and a couple of others. One solution would be for this mode - Safe with addons running - to be my default startup mode, but I can't work out how to do that. It's no huge problem because I can make Firefox run fine, but it's a bit time consuming. Any ideas?

Chosen solution

hi RufusWalker, please see if Firefox is slow after updating to Firefox 38 covers and fixes your issue.

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Chosen Solution

hi RufusWalker, please see if Firefox is slow after updating to Firefox 38 covers and fixes your issue.

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Thanks Philipp! That did the trick! A big ice cream is on its way to you :-)