when I want to update to Firefox 4 I get "the operation can't be completed because you don't have permission to access some of the items
I wanted to update to Firefox4. I downloaded the app and when I tried to drag the Firefox icon into the Applications I was asked if I want to replace the older version of Firefox. When I clicked "replace" I got the message: the operation can't be completed because you don't have permission to access some of the items
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If you get an error message that you do not have sufficient permissions or have other problems with updating to update then easiest is to download the full version and trash the currently installed version to do a clean install of the new version.
Download a new copy of the Firefox program and save the DMG file to the desktop
- Firefox 4.0.x: http://www.mozilla.com/en-US/firefox/all.html
- Trash the current Firefox application to do a clean (re-)install
- Install the new version that you have downloaded
Your profile data is stored elsewhere in the Firefox Profile Folder, so you won't lose your bookmarks and other personal data.