Can't install Firefox on ML

Discussion in 'OS X Mountain Lion (10.8)' started by blacksurfer, Aug 7, 2012.

  1. macrumors regular

    Mar 15, 2011
    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?
  2. macrumors regular

    Oct 8, 2006
    Altadena, CA
    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).
  3. macrumors newbie

    May 1, 2008
    I had the same problem with Firefox. I ended trashing the Firefox app and reinstalled it with no problems.
  4. macrumors 68040


    Aug 6, 2007
  5. macrumors 6502a

    Feb 26, 2011
    Las Vegas, NV
    Gatekeeper doesn't stop you from installing unapproved apps, only running unapproved apps.
  6. blacksurfer, Aug 10, 2012
    Last edited: Aug 10, 2012

    thread starter macrumors regular

    Mar 15, 2011

    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.
  7. macrumors member

    Feb 8, 2010
    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
  8. thread starter macrumors regular

    Mar 15, 2011
    I repaired the permissions but i still couldn't install Firefox. But the old version is working for now. thanks

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