This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

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

  • 2 replies
  • 1 has this problem
  • 29 views
  • Last reply by cor-el

more options

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

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

All Replies (2)

more options

What's your Firefox version?

Are you logged in as an administrator?

more options

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: