Mozilla VPN is currently experiencing an outage. Our team is actively working to resolve the issue. Please check the status page for real-time updates. Thank you for your patience.

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

Firefox won't start after 18.0.1 upgrade

  • 4 fhreagra
  • 8 leis an bhfadhb seo
  • 7 views
  • Freagra is déanaí ó philipp

more options

I have upgraded to the latest version and then two days later, The mozilla Crash reporter opens and it won't start. Nothing happens when I press details.

I can't run it safe mode. The same thing happens.

I uninstalled and re-installed and same thing.

I then uninstalled rebooted and re-installed V16. That was then ok for a few days then same thing happened.

So I unintstalled rebooted and on went V15 which worked for about 8 hours. However I can't get any version to work now. The Crash Reporter pops up whatever version I have.

I have upgraded to the latest version and then two days later, The mozilla Crash reporter opens and it won't start. Nothing happens when I press details. I can't run it safe mode. The same thing happens. I uninstalled and re-installed and same thing. I then uninstalled rebooted and re-installed V16. That was then ok for a few days then same thing happened. So I unintstalled rebooted and on went V15 which worked for about 8 hours. However I can't get any version to work now. The Crash Reporter pops up whatever version I have.

All Replies (4)

more options

We're sorry to hear that your Firefox seems to be crashing when you open it. Please perform the following steps to give us a crash report ID that helps us find out more about the cause of the crash.

  1. Press the following shortcut to get a Run window: [Windows] + [R]. This should bring up a window that contains a text field.
  2. In that text field, enter %APPDATA% and press Enter. An explorer window should open.
  3. From that explorer window, double-click on the Mozilla folder, then double-click on Firefox and then on Crash reports. Double-click on submitted.
  4. Now, you should see a list of files that contain reports. Go to View > Arrange Icons by > Modified to get the most recent files at the top of the window.
  5. Open the most recent 5 files with a text editor and copy the IDs.
  6. Paste each ID into the reply window on the forums.

Thanks in advance!

You can find more information and troubleshooting steps in the Troubleshoot Firefox crashes (closing or quitting unexpectedly) article.

more options
more options

Crash ID: bp-e214853f-c7d4-4e79-a024-af1d52130125

Crash ID: bp-9c7993ae-a37f-4e18-af8f-612732130125

Crash ID: bp-89756f55-3bc7-4480-8862-859b32130125

Crash ID: bp-c7c2738d-2596-426a-94d8-1eed02130125

Crash ID: bp-6112bce1-699e-480d-a45b-8d0a22130125

more options

hello saffer, these crashes are caused by Websense Endpoint security software that is running on the system. please try to install all the updates that are available for this program...