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Firefox Developer Edition Constantly "Not Responding"

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

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Hello Awesome Firefox Community,

For the past week, my Firefox Developer Edition has been consnatly freezing, "not responding," yet, not crashing.

I have implemented just about every troubleshooting fix I've found on the support pages, but the issue persists.

Same thing is happening to my Mozilla Thunderbird.

Anyone has a trick up their sleeve for this one? It's counterproductive for work, slowing my performance down quite a bit.

Thanks in advance.


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You may have seen a post or received a notification regarding support for Firefox or Thunderbird with a link to another site or a phone number being posted. This is a scam and is not a method to receive support from Mozilla. Mozilla does not have telephone or email support. Please do not click on the link and do not interact by calling any phone numbers or email addresses listed. I apologize for any inconvenience caused. You are currently posting on the official Mozilla website and will receive assistance here.

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Try to create a new profile as a quick test to see 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.