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Application list is empty-- Firefox 30

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  • Last reply by debbie99

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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)

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Adding screenshot of issue.

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

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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

Modified by Moses

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