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Thread: Firefox

  1. #1

    Member Since
    Aug 07, 2010
    I hope this is the right forum for my problem....

    I have an Apple iMac with 2 users. Firefox was working perfectly OK but now works on one account only. Every time I load Firefox - the administrator - it just crashes and will not load at all.

    I think it happened after an add-on upgrade, but if I can't load it, how do I troubleshoot the problem?

    The only route I can see is to delete Firefox entirely and reinstall from scratch - but that pre-supposes the deletion gets everything AND the problem bit.

    Any input gratefully received.


  2. #2

    toMACsh's Avatar
    Member Since
    Jul 30, 2009
    Mac Mini (Late 2014) 2.6GHz Intel Core i5 Memory: 8GB 1600MHz DDR3
    Well, from what you've presented, there are two possibilities:
    Firefox is misbehaving
    You only have one account that isn't hosed

  3. #3

    Member Since
    Jun 11, 2010
    Copenhagen, Denmark
    MacBook Pro i7 2,4 Ghz + MacBook Pro 2,6 Ghz 15" - iMac 27" i5 2,7 Ghz - Cinema Display 24" - ATV 16
    Thumbs up

    I know from own experience and from the danish that there is a problem with 10.6.x and some versions of FF. Try downgrade you browser to an older version e.g. 3.5.x. And wait to update until the bug is fixed. It is an security issue in 10.6.x not an FF problem.

    Sometimes you can actualle downgrade and upgrade to latest without experience the problem.

    You can find old version of firefox on Old Version of Firefox for Mac -


  4. #4

    vansmith's Avatar
    Member Since
    Oct 19, 2008
    Early 2015 13" rMBP
    Open Firefox in safe mode by holding down option as you open it and uninstall the extension you think is causing the problem. Repeat until the problematic extension is removed.
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