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Firefox is crashing every time I attempt to start it. I have followed all troubleshooting.

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Firefox has worked fine forever, until I tried to open it today and it just crashes instantly. I have tried safe mode, a clean install, malware scans, nothing is helping. It just instantly crashes.

Firefox has worked fine forever, until I tried to open it today and it just crashes instantly. I have tried safe mode, a clean install, malware scans, nothing is helping. It just instantly crashes.

All Replies (5)

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Hello justin6587,

We're sorry to hear that Firefox is crashing. In order to assist you better, please follow the steps below to provide us crash ID's to help us learn more about your crash.

  1. Enter about:crashes in the address bar (that's where you enter your website URL) and press Enter. You should now see a list of submitted crash reports.
  2. Copy the 5 most recent crash ID's that you see in the crash report window and paste them into your response here.

More information and further troubleshooting steps can be found in the Troubleshoot Firefox crashes (closing or quitting unexpectedly) article.


you can also try to boot the computer in Windows Safe mode with network support (press F8 on the boot screen) and check firefox again.

(If works in Windows Safe mode then you have a problem with other software, like security software or maybe a system driver, that is running on your computer).


thank you

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I am unable to enter about:crashes into the address bar because Firefox will not open.

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I would also like to add that all other browsers are functioning perfectly.

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I was able to get the IDs from the crash reports folder

bp-4ed7e44e-47cb-4c70-9ead-42cda2130515 bp-06b5ab1a-5de3-4a04-8056-a1ddb2130515 bp-9155a141-0476-4fac-b199-67bc92130515 bp-e3f9eb57-4bf9-4918-8e45-2562a2130515

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thanks, those crashes are triggered by the websense endpoint security software that is running on your system - there should be an update available for this program that fixes the issue - maybe you'll have to contact Websense's customer support...