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Windows 10 says I can't access specified firefox drive after latest update

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

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I get an error saying "windows cannot access the specified drive, path or file. You may not have appropriate permissions to access the item" after latest windows 10 upgrade and firefox will not run at all. It is trying to access my users subdirectory

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What's your Firefox version?

Are you logged in as an administrator?

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Try to reinstall Firefox as a normal user and make sure to delete the Firefox program folder if it is still present.

  • (64-bit Firefox) "C:\Program Files\Mozilla Firefox\"
  • (32-bit Firefox) "C:\Program Files (x86)\Mozilla Firefox\"

You can find the full version of the current Firefox release (65.0) in all languages and all operating systems here: