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Firefox 3: Removing Persistent Extensions or Add-ons

Last Updated: 11/14/08

I have recently ran into a couple situations where I wanted to remove a Firefox 3 extension only to find that the Add-On management screen would not let me uninstall the add-on. The uninstall button was grayed out. After doing some searching I figured out how to remove it. Delete the registry key that tells Firefox to load the add-on.

HKEY_LOCAL_MACHINE\SOFTWARE\Mozilla\Firefox\Extensions




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