4 Replies Latest reply: Nov 27, 2013 8:08 PM by Nick Frisina
TrappedInAFortuneCookieFactory Level 1 Level 1 (0 points)

I installed Mavericks on a 2011 MacBook Pro. After the upgrade, safari hangs and runs really really slowly. Sometimes it will stop 1/2 down a page and not finish loading and just hang.

 

After finding the same thing happening with a safe mode boot, and after reinstalling Mavericks twice, and after repairing permissions after booting into the recovery partition, I finally broke down and uninstalled flash.

 

Instantly the computer started acting normally.

 

Unfortunately the computer actually needs flash installed to run a website my children enjoy. So I reinstalled it and the problem came back again.

 

What I don't understand is that my 2010 MacBook Pro with a slower processor but the same amount of RAM runs just fine with flash installed.

 

Is there some secret that I'm just not getting to make flash actually run at a decent speed in safari, or a setting that I might need to tweak?


MacBook Pro, OS X Mavericks (10.9)
  • Nick Frisina Level 1 Level 1 (0 points)

    Safari Slow after Mavericks install.

     

    My Fix.

     

    In order below try:

     

    1) System Preferences -> Flash —> Advanced -> “Browser Data and Settings” -> “Delete All”

    2) Safari -> “Reset Safari” (make sure you clear everything).

    3) Reboot your machine.

     

    Try the misbehaving website…all should be well.

     

    If not:

    4) Safari -> “Reset Safari” (make sure you clear everything).

    5) Exit Safari

    6) In Finder go to ~/Library/Caches

       remove com.apple.Safari

    7) In Finder go to /Library/Caches

        there may be a file or directory with “Safari” in name…remove it.

    8) In Finder go to ~/Library/Preferences

         there may be a file com.apple.Safari.plist , remove it.

         there may be a file com.apple.Safari.Extensions.plist , remove it.

    9) In Finder go to ~Library/Saved Application State

         there may be a file com.apple.Safari.savedState , remove it.

    10) Reboot your machine.

     

    Try the misbehaving website and all should be well.

     

    If not:

    11) Safari -> “Reset Safari” (make sure you clear everything).

    12) In Finder go to ~/Library/Caches

        remove the file com.apple.nsservicescache.plist

    13) Reboot your machine.

     

    Try the misbehaving website and all should be well.

     

    If not:

    14) System Preferences -> Network -> Advanced -> DNS

        The IP Addresses here should be “greyed out” numbers.

        If they stand out as “black”, you may have a conflict with your ISPs DNS Servers.

        If they are in “black”,

        a) Note the numbers down on paper.

        b) Remove them

        c) Apply

        d) Check that the numbers are now “grey”.

    15) Reboot your machine.

     

    Try the misbehaving website and all should be well.

     

     

    If it is anything else…you are on your own…

     

    ciao

    nickf

  • TrappedInAFortuneCookieFactory Level 1 Level 1 (0 points)

    At the risk of asking a dumb question, what exactly are you telling me to do here?

     

    You know, before I start deleting stuff all over the place.

  • Nick Frisina Level 1 Level 1 (0 points)

    LIke the other threads about this topic, what makes Mavericks run slow is the left over caches from the previous version.

    eg: just google "Mavericks runs slow".

     

    These caches merely hold your "preferences" and "previous settings" and the like.

    They get recreated the software program starts again.

     

     

    I have seens a number of upgrades, including my own,  exhibit this issue of slowness.

    I have managed to get a formula down as described above.

    In this case Safari Flash Plugin, Safari itself, and DNS Server, any one, or perhaps all can be an issue.

    (So I ask youto stop if your issue goes away).

     

    You can monitor what is hapenning on your machine by:

    1) Enabling "Developer" on Safari, and then opening a "Web Inspector window"

    2) Openning "Activity Monitor", watching the Network Packets, and CPU.

    3) If you have a Network Monitor like Little Snitch, it discloses more info about comms to

         other hosts, via mDNSResponder.

     

    A rather more heavy handed approach to a slow running Mavericks in general, would be to remove all caches

    in all locations, local to the users and System wide...but then then reconfiguring all software is just tedious.

    As some have suggested, the best method to avoid all this is to

    a) backup

    b) install 'as if' onto a new disk

    c) restore

     

    anyway.....let me know how you go.

    nickf

  • Nick Frisina Level 1 Level 1 (0 points)

    ps - an an addendum…I have done some 8 upgrades using method above.

    Then the 9th went sour. No improvement for Safari speed.

    In the end I had to:

    16) Safari -> “Reset Safari” (make sure you clear everything).

    17) Exit Safari

    18) In Finder go to /Library/Caches

        there may be a file or directory with “Safari” in name…remove it.

    19) In Finder go to ~/Library/Preferences

         there may be a file com.apple.Safari.plist , remove it.

    20) De-install Flash Player using the Adobe uninstaller.

    21) Reboot Mac. (at 1st I tried it without a reboot, but it did NOT fix Safari speed).

    22) Install Flash Player from Adobe.

    23) Reboot Machine. (This was just paranoia.)

    All was now well.

    nickf