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Firefox hangs indefinitely after opening Preferences

  • 4 replies
  • 1 has this problem
  • 2 views
  • Last reply by Jake

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This morning I noticed that Firefox hangs indefinitely whenever I open Preferences and navigate to the Applications tab. I have tested this using Firefox beta and Firefox Aurora. I have also tested this using a completely new account. It always results in the same outcome.

The only correlation I can make is that I was asked to update Flash recently (yesterday or today) by YouTube, saying I was running a version lower than 10. I knew this was a ridiculous claim, but I installed an update anyway. YouTube still gave me the same error, so I uninstalled then reinstalled Flash. Flash now works fine. I'm not sure if the issue was happening before I updated Flash, but that is when I noticed it.

This morning I noticed that Firefox hangs indefinitely whenever I open Preferences and navigate to the Applications tab. I have tested this using Firefox beta and Firefox Aurora. I have also tested this using a completely new account. It always results in the same outcome. The only correlation I can make is that I was asked to update Flash recently (yesterday or today) by YouTube, saying I was running a version lower than 10. I knew this was a ridiculous claim, but I installed an update anyway. YouTube still gave me the same error, so I uninstalled then reinstalled Flash. Flash now works fine. I'm not sure if the issue was happening before I updated Flash, but that is when I noticed it.

Modified by Jake

All Replies (4)

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Try to delete the mimeTypes.rdf file in the Firefox Profile Folder.

  • Help > Troubleshooting Information > Profile Directory: Open Containing Folder
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No luck. I deleted it and fired up Firefox and had the same result.

The odd thing is it happens across different profiles.

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Bump. No one has any other options? I've found similar problems in different versions, but none of them have solutions...is this honestly an unsolvable problem?