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Safari take many CPU ( 99% - 100% ). Computer is lag and delay when i use safari

Dear all,


After I update Safari. I meet this problem.

I use safari in 5-10 min, safari take many CPU and RAM after that my computer will lag, delay and dead, it's not working.

I must to hot restart Computer to fix it ( press button On/Off ).

Please help me.


User uploaded fileUser uploaded fileUser uploaded fileUser uploaded file

MacBook Pro (Retina, 15-inch, Late 2013), OS X Mavericks (10.9.5), null

Posted on Apr 26, 2016 10:10 PM

Reply
4 replies

Apr 27, 2016 2:47 AM in response to QuangVM

Go step by step and test.


1. Click  in the menu bar and choose “Force Quit”.


Select Safari and click “Force Quit at the bottom of the Force Quit window.


Hold the Shift key down and launch Safari.


2. Disable Extensions and test.


Safari > Preferences > Extensions


Uncheck boxes beside “Enable Extension” and test.

Enable Extensions one by one and test.

To uninstall any extension, select it and click the “Uninstall” button.


3. Delete Caches.


Close all windows and quit all applications.

Hold "option" key down and click "Go" menu in the Finder menu bar.

Select "Library" from the dropdown.


Library > Caches > com.apple.Safari

Right click the com.apple.Safari file and select "Move To Trash”.



4. Delete Cookies.


Safari > Preferences > Privacy > Cookies and other website data:


Click the “Details” button.

Remove all cookies except ones from Apple, your internet service provider and banks.




5. Delete com.apple.Safari.plist file and test.



Empty the Trash.

Quit all applications.

Hold the option key down and click the "Go" menu in the Finder menu bar.


Select "Library" from the drop down.


Library > Preferences > com.apple.Safari.plist

Right click on it and select "Move it to Trash".

Restart. Relaunch Safari.


If this doesn’t help, “Put Back” the com.apple.Safari.plist


Right click on the Trash icon in the Dock and select “Open”.

Right click on the com.apple.Safari.plist and select “Put Back”.


6. If this doesn’t help, please run EtreCheck and post the report here.


http://etresoft.com/etrecheck


Download it, open Downloads folder, click on it to open and select ”Open”.

Select a problem from the “Choose a problem” popup menu box and then “Start EtreCheck” in the dialog.

Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste it when you reply.

Apr 27, 2016 6:49 AM in response to QuangVM

Try a restart.


Do a backup, using either Time Machine or a cloning program, to ensure files/data can be recovered. Two backups are better than one.


Try setting up another admin user account to see if the same problem continues. If Back-to-My Mac is selected in System Preferences, the Guest account will not work. The intent is to see if it is specific to one account or a system wide problem. This account can be deleted later.


Isolating an issue by using another user account


If the problem is still there, try booting into the Safe Mode using your normal account. Disconnect all peripherals except those needed for the test. Shut down the computer and then power it back up after waiting 10 seconds. Immediately after hearing the startup chime, hold down the shift key and continue to hold it until the gray Apple icon and a progress bar appear. The boot up is significantly slower than normal. This will reset some caches, forces a directory check, and disables all startup and login items, among other things. When you reboot normally, the initial reboot may be slower than normal. If the system operates normally, there may be 3rd party applications which are causing a problem. Try deleting/disabling the third party applications after a restart by using the application un-installer. For each disable/delete, you will need to restart if you don't do them all at once.

Safe Mode


Safe Mode - Mavericks

Safe Mode - About


Safe Mode - Yosemite



Safe Mode - About El Capitan


Safe Mode Startup – El Capitan.

Safari take many CPU ( 99% - 100% ). Computer is lag and delay when i use safari

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