YouTube + Flash videos crash and freeze Mac OS X Lion 10.7

By Updated on

New software is expected to have bugs and no matter how much beta testing is done, there will be problems found after the software is made public for retail consumption. While Windows users complain about problems the most, Mac is not perfect and the latest release, OS X Lion 10.7, has its fair share of issues.

Last week we heard about an external display bug with Launchpad on machines running Mac OS X Lion, and after testing the software since release, we have found one problem that sticks out above the rest. One of the best improvements I found when moving to Mac computers was how solid they are, and the lack of crashing / freezing was bliss. Sadly since we installed OS X Lion there have been a number of lock ups at random times.

Having had OS X Lion freeze on us over 10 times, we slowly found a pattern. Occasionally when viewing YouTube videos everything would freeze, and only the mouse pointer could be moved. When this happens there is no way to close programs, or do much other than move the mouse pointer, which means a force shut down and this just hurts, especially on the Mac operating system.

Other emails sent to Product Reviews point to flash causing the crashing, and we know Steve Jobs opinion on this. While we’ve not confirmed Flash is causing Lion to crash and freeze, it does add up. The other pattern we noticed was the crashing happens mostly when the computer returned from sleep mode, videos would play just fine other times but seemed to freeze Lion not long after returning from sleep. The idea of doing a hard reset with the power button is not a good option, but luckily Lion does include an auto save feature, which means every time we’ve had to do this all our work was saved, and the windows open just as we left them.

Has your OS X Lion install crashed when watching videos or using Flash? If so, make sure you inform Apple support so they can work on a fix. We’ll update you when a patch/fix is available to download.

Also See: iOS 8.2 release waiting on iOS 8.1.3 maintenance update

  • http://rubenlaguna.com/wp Rubén Laguna

    I’m having exactly this issue as well. 

  • http://pulse.yahoo.com/_IGFQQD7G7RHJ5J54ABTXR4R4QE Dingerz

    Yes, this has happened to me twice so far and it is very annoying.  I hope an explanation and fix comes soon.  

  • http://pulse.yahoo.com/_IGFQQD7G7RHJ5J54ABTXR4R4QE Dingerz

    Yes, this has happened to me twice so far and it is very annoying.  I hope an explanation and fix comes soon.  

  • http://rubenlaguna.com/wp Rubén Laguna

    By the way, I had version 10.1.102.64 of the Flash Player and after upgrading to 10.3.181.34 (which is considered beta in Lion) seems to work fine. 

    • http://pulse.yahoo.com/_IGFQQD7G7RHJ5J54ABTXR4R4QE Dingerz

      I upgraded to the new beta flash too and so far, after my iMac went to sleep, it seems fine!  So if it stays fine after tomorrow, then that should be it. 

      Some on the Apple forums are saying despite upgrading flash, it’s still happening.  So I hope I’m not one of them. 

      • http://rubenlaguna.com/wp Rubén Laguna

        Have been crash free for 3 days after upgrading to the latest Flash but today I got it again. So the upgrade to the latest flash is not a definitive solution although it alleviates the problem. 

        • Sigi

          10.3.181.34 did not fix it for me.  The same problem about twice / week.

        • http://rubenlaguna.com/wp Rubén Laguna

          There is also a f flash 11 beta version for Lion. I would post the link but it seems that it’s not allowed. The only real fix is to disable sleep on the mac because it seems that the crashes only happen when the mac has been put to sleep at least once since the last reboot. 

        • http://rubenlaguna.com/wp Rubén Laguna

          There is also a f flash 11 beta version for Lion. I would post the link but it seems that it’s not allowed. The only real fix is to disable sleep on the mac because it seems that the crashes only happen when the mac has been put to sleep at least once since the last reboot. 

  • daniel.kim7396

    Exactly the same issue! My Mac computer revolves around flash videos, and it crashes almost 2-3 times a day :( Apple has to fix it or my computer is going to suffer so badly.

  • daniel.kim7396

    Exactly the same issue! My Mac computer revolves around flash videos, and it crashes almost 2-3 times a day :( Apple has to fix it or my computer is going to suffer so badly.

  • andyredsoxfan

    Yes, this has happened to my wife twice now.  Very frustrating.

  • Anon.

    yes experienced the same exactly.

  • http://www.facebook.com/profile.php?id=1831143119 Giacomo Antolini

    Same problem here. Upgrading flash doesn’t solve the problem.

  • No

    This has happened twice and I have only had the iMac for 6 days.  I am considering a return at this point.

  • http://twitter.com/effla Nicola Efflandrin

    Same problem for me, almost fourth time i’ve to shut down the Mac. Hoping some fix are coming…

  • Guest

    same problem for me too… freeze of especially youtube videos after resume…
    don’t know if its a lion or flash problem… they have to fix it immediately… i can’t use my mac as i want it to.
    very frustrating… 

    *imac mid 2011, lion*

  • Guest

    same problem for me too… freeze of especially youtube videos after resume…
    don’t know if its a lion or flash problem… they have to fix it immediately… i can’t use my mac as i want it to.
    very frustrating… 

    *imac mid 2011, lion*

  • http://twitter.com/ChrisMoore81 Chris Moore

    Same issue for me, crashes almost every time I run youtube. Hope a fix comes soon.

  • 004

    same issue for me, regularly with youtube watching on firefox, but also sometimes on safari!!

  • Jente

    3dr time on my 2-day old iMac! 
    My MacBook Pro with Snow leopard doesn’t have the problem.
    Too bad Apple. Too bad.

  • http://twitter.com/Piratessan Eva Dejmo

    The same thing has happened to me too, however I am still running Snow Leopard?

  • http://twitter.com/Piratessan Eva Dejmo

    The same thing has happened to me too, however I am still running Snow Leopard?

  • Videogamer513

    yep – I’ve had this happening for a bit now.  I’ve also seen some Quicktime videos render as thin, colored lines before locking up the system, too (2011 21.5″ iMac)

  • baldy

    Why would you inform Apple Support of an Adobe issue?  It seems like Adobe should get their act together finally instead of counting the outrageous money they make for their tools.  

    • Pet Tic

      Why blame Apple and not Adobe? Because no reasonable OS since Windows NT or so should crash on application problems. Except Lion.

  • Hans

    I’ve had the exact same issue now for a while on my MBP 17″ (up to 10 crashes a day — I’m a freelance flash developer :) ), and people at Switch (the “apple” stores, you know?) have been looking at it for a month now.
    First they gave me a new screen, later a new harddisk.
    Didn’t solve the problem at all.
    Downgraded to Snow Leopard: still had the problem!!! just not that often.
    upgraded back to lion: crashed right after installation.
    BUT now i might have found a fix.

    - go to Preferences
    - Go to Energy saver.
    - Turn off “automatic graphics switching”.
    To me, this solved all of my problems for more than a week now, really.

    Even putting the setting back on, still doesn’t give me any crashes. It’s kinda weird.
    I’m trying to recreate the crash by opening up a lot of programs while running heavy AIR apps and flash websites, but still no crashes.

    Please can someone try this and let me know if it fixes your problems as well?

  • Gallison

    Paid over $5000 for 2 new Macs!  Have had to reboot more times in 3 months than 10 years of owning a PC. NOT GOOD ENOUGH MACINTOSH!!!!!