A number of users have reported that Safari 5.0 crashes (unexpectedly quits) randomly during regular use. The crashes may occur during page loading, when Safari starts up, when the Mac wakes up from sleep, or when a new page or tab is opened.
There are a number of potential fixes for this issue, including:
Delete cache folder Navigate to ~/Library/Caches (this is the Library folder inside your user folder), and drag the folder com.apple.Safari to the trash. Quit then relaunch Safari.
Reset Safari Although you’ll lose some potentially valuable stored data, this very simple procedure can resolve the crashing issue in some cases. Simply go to Safari > Reset Safari (in the Safari menu bar) and check all items.
Delete add-ons. Some plug-ins and add-ons may be incompatible with the new release of Safari, causing crashes.
- /Library/Input Methods/
- /Library/InputManagers/
- ~/Library/Input Methods/
- ~/Library/InputManagers/
CT Loader has also been known to cause crashes. Delete all of the following files, then restart your Mac and launch Safari.
- /Library/Application Support/Conduit
- /Library/InputManagers/CTLoader
- /Library/Receipts/ctloader.pkg
- /Library/Receipts/.pkg
- /Library/Application Support/SIMBL/Plugins/CT2285220.bundle
- ~/Library/Application Support/Conduit
Downgrade to Safari 4.0.5 As a last resort, you can downgrade to Safari 4.0.5 as described here.
Nicholas on 
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June 10, 2010 at 4:01 PM
nah, running here, dozens of tabs open in 4 Safari windows, many flash websites acessed, it’s been rock solid…
June 11, 2010 at 3:24 PM
Crashing randomly all the time…..a pain
June 11, 2010 at 9:33 PM
Thanks for the fix. I wasted a lot of time and had given up. What happened at Apple???
June 18, 2010 at 11:49 PM
What is APE, where do I find it? I can’t get Safari 5 to open at all, it comes up in the menu bar but no page opens and if I choose new page, it immediately crashes. Help.
June 20, 2010 at 1:09 PM
Tried all the fixes here – didn’t work! It’s hopeless! I’m now using Firefox 3.6.3 much MUCH better!!
June 27, 2010 at 12:16 PM
Brand new IMAC – Updated to Safari 5.0 and it will not remain open.
Apple has failed miserably.
Time to downgrade – better yet, switch to FF.
June 28, 2010 at 3:04 PM
If you are reading this, please – do NOT waste your time with fixes. None worked for me, including the downgrade to Safari 4 which is doing the same thing now. I am using Firefox 3.6.4 with no issues. I can’t even access this page with Safari! How sad is that?
July 3, 2010 at 5:49 AM
Tried the solutions listed above, still crashing.
What happened to Apple? God damn Safari is just keep crashing over and over again. Gotta change back to Firefox.
July 3, 2010 at 11:12 AM
I was able to reinstall 4.0.5 using time machine. Safari 5 was fine for a few week then started hanging and had to be forced quit every few minutes nothing worked to fit it.
July 5, 2010 at 7:56 PM
Me Upgrade 10.5.8 then my safari Not work
if I Reset My safari Quit Uns…
July 14, 2010 at 5:22 AM
had the same problem none of the fix suggestions helped! i looked at the safari preferences and noticed my default browser was set to google i use yahoo so i changed that setting to yahoo and it now works fine!
July 16, 2010 at 6:31 AM
I find Safari 5 o.k. for most uses, but it refuses to display PDF documents. I find FF fine for most uses, but it’s buggy. Chrome has become my browser of choice. It’s fast, efficient, nonbuggy, and loaded with efficient google add-ons. Even my friends at the local Apple store have told me that they like it!
August 25, 2010 at 4:47 AM
Safari crashes under one user account, but works okay for other accounts.
September 5, 2010 at 1:20 PM
I’m sad but I’m giving up, nothing works. I’m with Google Chrome and I’m not sure if I’ll go back to Safari 5 or X when Apple fixes it.
September 5, 2010 at 1:32 PM
Well, I finally found the solution at
http://support.apple.com/kb/TS3230
October 20, 2010 at 7:11 PM
Moment I took that CT loader off, every thing came back to normal. I stayed almost a year without safari launching. The instructions here are the best so far. Thanks you guyz save my life