We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

Application list is empty-- Firefox 30

  • 5 tontu
  • 3 am na jafe-jafe bii
  • 1 view
  • i mujjee tontu mooy debbie99

more options

Using Firefox 30 under Windows 7, list of applications is completely empty--no file associations of any kind, and I'm unable to add any new ones. I've created a new profile, reset Firefox, done a complete uninstall and reinstall, to no effect. Any suggestions?

Using Firefox 30 under Windows 7, list of applications is completely empty--no file associations of any kind, and I'm unable to add any new ones. I've created a new profile, reset Firefox, done a complete uninstall and reinstall, to no effect. Any suggestions?

All Replies (5)

more options

Adding screenshot of issue.

more options
more options

Thanks for the suggestion, finitrry. I tried all the suggestions and nothing works. Any other suggestions?

more options

Can you try to start Firefox in Safe Mode to see if Firefox works properly with no error? You can start Firefox in Safe Mode below:

  • Windows/Mac: Go to Help > Restart with add-ons disabled
  • Linux: Run firefox -safe-mode in the Terminal/Konsole

If Firefox opens up fine with no problems, it's probably one of your extensions that's causing the issue. You can re-enable your add-ons one by one until you find the one that causes the issue upon being re-enabled.


I'm always suspicious of extra add-ons/toolbars provided during install of Antivirus software. It's pointless!


Did you delete the mimeTypes.rdf file from your Profile Folder? Just makin' sure

Moses moo ko soppali ci

more options

Thanks for the suggestion moses. Unfortunately I still have an empty application list when I restarted in safe mode.