Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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.

Buscar en Ayuda

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

Firefox crashes immediately on startup

  • 2 respuestas
  • 1 tiene este problema
  • 3 visitas
  • Última respuesta de zzgd

more options

Firefox 48 and previous versions worked great on my PC. Since installing Firefox 49, I have not been able to open Firefox at all. A Mozilla Crash Reporter window appears immediately when I try to open the browser (image attached); the browser window never opens. The same thing happens if I click the "Restart Firefox" button in the crash reporter. As a result, I am unable to open it in safe mode.

I installed Firefox 50 yesterday, and the issue persists. For both versions, I have followed the recommended steps to resolve, including uninstalling and reinstalling the browser, and removing the Firefox folder from the %APPDATA% folder.

My operating system is Windows 10 Enterprise, version 1511.

My latest crash ID is: Crash ID: bp-d06365da-3d63-4d73-9b8d-33c8a2161116

Hoping you can offer some troubleshooting tips. Thank you.

Firefox 48 and previous versions worked great on my PC. Since installing Firefox 49, I have not been able to open Firefox at all. A Mozilla Crash Reporter window appears immediately when I try to open the browser (image attached); the browser window never opens. The same thing happens if I click the "Restart Firefox" button in the crash reporter. As a result, I am unable to open it in safe mode. I installed Firefox 50 yesterday, and the issue persists. For both versions, I have followed the recommended steps to resolve, including uninstalling and reinstalling the browser, and removing the Firefox folder from the %APPDATA% folder. My operating system is Windows 10 Enterprise, version 1511. My latest crash ID is: Crash ID: bp-d06365da-3d63-4d73-9b8d-33c8a2161116 Hoping you can offer some troubleshooting tips. Thank you.

Solución elegida

hi zzgd, unfortunately these crashes will be caused by websense security software running on your system and negatively affecting firefox. according to some reports this might be fixed with newer versions of websense, so you might want to get into contact with your it department if they could roll-out an updated version of websense. otherwise firefox esr might also be an option: Old versions of Websense cause startup crashes in Firefox

Leer esta respuesta en su contexto 👍 1

Todas las respuestas (2)

more options

Solución elegida

hi zzgd, unfortunately these crashes will be caused by websense security software running on your system and negatively affecting firefox. according to some reports this might be fixed with newer versions of websense, so you might want to get into contact with your it department if they could roll-out an updated version of websense. otherwise firefox esr might also be an option: Old versions of Websense cause startup crashes in Firefox

more options

Thank you, that is helpful info.