I upgraded from Snow Leopard to Mountain Lion on a 2010 Mac Book Pro. All seem to have went well. But I tried to upgrade Firefox and now no version of Firefox will slide to the applications folder to install. It asks to keep both, replace or stop but nothing works. It asks for my ID and PW and it say I don't have permission. Any ideas?
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Can't install Firefox on ML
- Thread starter blacksurfer
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First try repairing permissions.
If that doesn't work, enable showing hidden files, then look in /Applications and delete anything with the word "Firefox" in the name. Empty your trash, then try reinstalling Firefox.
Don't forget to disable showing hidden files (procedure is in the same link above).
If that doesn't work, enable showing hidden files, then look in /Applications and delete anything with the word "Firefox" in the name. Empty your trash, then try reinstalling Firefox.
Don't forget to disable showing hidden files (procedure is in the same link above).
Gatekeeper doesn't stop you from installing unapproved apps, only running unapproved apps.
Thanks all.
I sill can't slide the new Firefox to the app folder, but when I doubled clicked on the firefox icon it opened up the old Firefox. Well at least it kept the Netflix pw my daughter was using and she's happy.
Last edited:
To repair your permissions
Go to Disk Utility > In the left side bar click on "Macintosh HD" or whatever you've renamed it > First Aid tab > Click on "Repair Disk Permissions" at the bottom of the box
I repaired the permissions but i still couldn't install Firefox. But the old version is working for now. thanks