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Firefox very slow in 10.6.5

8014 Views 18 Replies Latest reply: Nov 18, 2010 1:07 PM by levytv RSS
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drdocument Level 4 Level 4 (2,995 points)
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Nov 11, 2010 2:58 PM
After updating to 10.6.5 Firefox (latest version) is very slow for everything, typing, mouse clicks, everything. Safari is its old speedy self.

I verified disk and used combo updater to install 10.6.5, then cleared caches (including font caches), repaired permissions, re-verified disks, etc., reset PRAM and have restarted a few times.

I have restarted Firefox in safe mode -- no joy.

Any suggestions?
Mac Pro 8-core, 4GB RAM, MacBook Pro, Mini Core 2 Duo, Mac OS X (10.6.5)
  • vlad2277 Calculating status...
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    Nov 11, 2010 7:41 PM (in response to drdocument)
    No suggestions yet. I don't use Firefox, but Safari is ridiculously slow!
    Finder is much slower, it takes more time to boot/shot down.
    I can't blame internet connection though - my Windows 7 runs fine via BootCamp.
    Very unpleasant surprise by Apple.
    iMAC 2.4 GHZ, 20 inch, Late 2007 model, 4G RAM, Mac OS X (10.6.5)
  • tbux Level 4 Level 4 (1,665 points)
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    Nov 11, 2010 8:24 PM (in response to drdocument)
    I am not having any problems after the OS X 10.6.5 update with Firefox, Safari, Opera, Chrome, the Finder or anything else.

    I started in Safe Mode, repaired permissions, cleaned caches then stated again in Safe Mode, applied the combo updater, restarted and again repaired permissions.
    MBP Unibody 15 " 2.53GHz SSD 4GB RAM, MBP 15" 2.4GHz 4GB RAM, Mac OS X (10.6.5)
  • tchelotchelo Calculating status...
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    Nov 12, 2010 4:55 PM (in response to drdocument)
    Drdocument, I made the procedure all and it did not function! I restored my system for the 10.6.4 through the Machine Team.

    Do you have another idea?

    Thanks...
    Macbook Pro 15, Mac OS X (10.6.4)
  • Joe_wht Calculating status...
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    Nov 13, 2010 6:58 PM (in response to drdocument)
    EVERYTHING is slow on my Mac Book Pro.. and Firefox freezes up all the time.
    Searching apple tech site & google a TON of folks are having problems..
    Let's hope Apple gets a fix out fast..
    mac book pro, Mac OS X (10.6.5), 17"
  • Robert Greenhalgh1 Calculating status...
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    Nov 13, 2010 7:07 PM (in response to Joe_wht)
    Same here. It's like my MacBook's gone back in time and is running like my old Powerbook 1400 (33Mhz). What is wrong with this update? Is there a way to reverse it?
    MacBook Pro 17in, Mac OS X (10.6.5)
  • G Robert Lewis Level 2 Level 2 (225 points)
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    Nov 13, 2010 8:55 PM (in response to drdocument)
    2 of the 3 Mac's I've upgraded so far seem slower in various ways. Haven't really noticed it on the 3rd (Mac mini).
    Mac mini (mid-2009); MacBook Pro (early 2008), Mac OS X (10.6.5)
  • babowa Level 7 Level 7 (22,100 points)
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    Nov 13, 2010 9:29 PM (in response to Joe_wht)
    I'm sorry to hear that you are having problems; however, there are plenty of Mac owners who have applied this update without any problems whatsoever - including myself. So, there is nothing wrong with this update - instead, there is some problem with your system, configuration, and/or third party software. I always follow certain precautions before and after installing any updates. For instance, some add-ons, plugins, or other third party software may cause problems because it hasn't been updated to be compatible with the newer version of the OS.

    At this point, I'd suggest reading up on and booting into Safe Mode:

    http://support.apple.com/kb/HT1564

    http://docs.info.apple.com/article.html?path=Mac/10.6/en/21245.html

    If things seem to be better after that, discard the rest of the suggestions; if not, follow these:

    1. Download the combo updater from the Apple site.
    2. Repair permissions in Disk Utility.
    3. Verify disk in Disk Utility.
    4. If you have Disk Warrior, run it from an external.
    5. Make sure you have a fresh backup (bootable or Time Machine).
    6. Disconnect all peripherals except keyboard and mouse.
    7. If desired (but not absolutely necessary) boot into Safe Mode.
    8. Run the update installer; Mac will restart when done.
    9. Repair permissions.
    27" 3.2 GHz iMac i3, 4 GB RAM, 13" white early '09 MB,, Mac OS X (10.6.5), LaCie d2 DVDRW, 2 LaCie d2 Quadra ext HD , Wacom tablet, Epson Artisan 810
  • The hatter Level 9 Level 9 (58,595 points)
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    Nov 14, 2010 6:10 AM (in response to drdocument)
    ~/Library/Caches/Firefox (and the three that Safari uses?).

    Clone your system and see how it runs.
    Use Disk Warrior on your system drive(s).
    Found a couple things that Disk Utility did not.

    3.6.12 (and the 4.0b8) are fine, so I would strongly suggest you go down the SuperDuper + Disk Warrior route.

    4GB should be enough but only enough for a Mac Pro too.

    Or just do a quick install and update on a test drive (great to have multiple internal drives and FW800) as some have found that they had background process that was eating up and writing to system.log.
    Mac Pro 8800GTX, Mac OS X (10.6.5), 3.2GHz GTX 260 10K VelociRaptors Win7
  • levytv Level 1 Level 1 (20 points)
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    Nov 14, 2010 10:13 PM (in response to drdocument)
    i went to the firefox forum - mozillazine - and they said there was a button in network settings that was in proxy - instead of no proxy. turned it off firefox now fast as before.
    go to firefox prefs - advanced - network settings - then no proxy. never saw this on before but its great with it off.
    mini 2.26, Mac OS X (10.5.6)
  • jinglenut Calculating status...
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    Nov 16, 2010 3:47 AM (in response to babowa)
    thank you so much for not only the help but the easy follow instructions
    Imac Quad i7, Mac OS X (10.6.2)
  • babowa Level 7 Level 7 (22,100 points)
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    Nov 16, 2010 9:02 AM (in response to jinglenut)
    You're welcome!
    27" 3.2 GHz iMac i3, 4 GB RAM, 13" white early '09 MB,, Mac OS X (10.6.5), LaCie d2 DVDRW, 2 LaCie d2 Quadra ext HD , Wacom tablet, Epson Artisan 810
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