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

Mac OS 10.6.7 I can't install Firefox 4 because the alert screen says "The operation can't be completed because you don't have permission to access some of the items" even though all my plug ins are up to date. Help!

  • 1 reply
  • 7 have this problem
  • 3 views
  • Last reply by lray

more options

When I try to install Firefox 4, it gave me the message above and also broke Firefox 3.6.17 that I had installed. I have since reinstalled 3.6.17.

When I try to install Firefox 4, it gave me the message above and also broke Firefox 3.6.17 that I had installed. I have since reinstalled 3.6.17.

All Replies (1)

more options

I removed all firefox apps and started over with 4.0. Now it's working.