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How do I initialize the plugins database?

  • 3 replies
  • 1 has this problem
  • Last reply by cor-el

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Having a problem re-installing Adobe Flash Plugin'. Error message says "Directory name is invalid", Mozilla support says re-initialing the plugin database may fix the problem. I have the printed directions to do this in front of me, but I'm stuck because first it says "Open the profile folder" and I literally don't know where this is located? (I see it's got to contain a Firefox window). I guess I've got to be walked through this a little.

I would very much appreciate any help you can provide. Many Thanks. I

All Replies (3)

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Please update to Firefox 19.0.2 Update Firefox to the latest release then Reset Firefox Refresh Firefox - reset add-ons and settings

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As Tylerdowner said above, by all means update to the latest Firefox version.

Reinitialize plugin database -

To open your profile: click Firefox button > Help (or Help, if using the menu bar) > Troubleshooting information > Profile Folder > Show Folder

Other - Check your plugins and update as needed for outdated plugins.

  1. Check your Plugins -
  2. Java -
  3. Adobe Reader -

Modified by TheOldFox

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Try to uninstall Flash:

Update the Flash plugin to the latest version.

Try to run the Flash installer as Administrator (right-click: Run as Administrator).