2 Replies Latest reply: Mar 21, 2014 3:23 AM by HuwPNE
HuwPNE Level 1 Level 1 (5 points)

I am running the following


Maverick - 10.9.2, with Safari Version 7.0.2 (9537.74.9)


This build of Safari seems to be incredibly slow, not only when it opens but when you open multiple tabs, the iMac stops reponding, unable to use any applications until Safari starts again. Multiple instances of Safari Web Content are running




I have removed all Extensions, and have disabled Plug ins - any suggestions?


Many Thanks

OS X Mavericks (10.9.2)
  • Linc Davis Level 10 Level 10 (155,810 points)

    Please read this whole message before doing anything.

    This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.

    The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.

    Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you boot, and again when you log in.

    Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a Fusion Drive or a software RAID, you can’t do this. Ask for further instructions.

    Safe mode is much slower to boot and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal boot may also be somewhat slow.

    The login screen appears even if you usually login automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.

    Test while in safe mode. Same problem?

    After testing, reboot as usual (not in safe mode) and verify that you still have the problem. Post the results of the test.

  • HuwPNE Level 1 Level 1 (5 points)

    Hi Linc


    Thanks for this, comments as follows:


    1     Restarted in Safe Mode, no external drives etc attached

    2     Safari when opened behaved as expected, although there was some page fickering as pages reloaded. 3     Opening Multiple tabs, again much faster in Safe Mode

    4     See image, Safari Web Content still appears for every open page, however CPU usage is way reduced


    5     Restarted with no external drives etc attached, Safari again seem to work normally, this image shows CPU usage

    Activity_Monitor__All_Processes__No External Drives etc.png

    6     Attached external drives, retested Safari, with similar results to the above image

    7     used the iMac normally and retested, Safari seems to be remaining stable, I will continue to monitor, and update