Q: When I try to open Safari, it immediately crashes

Try holding down shift when you launch it.

tt2

Try the solution from here: Safari 5.0.6 is crashing on Mac OS X (Version 10.5.8), help?!

tt2

Same here, continously crashed

You're welcome.

tt2

Same here. Just getting multiple Problem Reports for Safari. Was working fine all day.

Yosemite 10.10.4, Safari 8.0.7, iMac late 2012

Safari/Preferences/Advanced - enable the Develop menu, then go there and Empty Caches. Quit/reopen Safari and test. Then try Safari/History/Show History and delete all history items.  Quit/reopen Safari and test. You can also try try Safari/Clear History and Web Site Data. The down side is it clears all cookies.Doing this may cause some sites to no longer recognize your computer as one that has visited the web site. Go to Finder and select your user/home folder. With that Finder window as the front window, either select Finder/View/Show View options or go command - J.  When the View options opens, check ’Show Library Folder’. That should make your user library folder visible in your user/home folder.  Select Library./Caches/com.apple.Safari/Caches.db and move it to the trash.

Go to Safari Preferences/Extensions and turn all extensions off. Test. If okay, turn the extensions on one by one until you figure out what extension is causing the problem.

Safari Corruption       See post by Linc Davis

Can not open Safari at all, but do regularly empty caches, delete history, and keep cookies to the few I need. May have done this earlier on the day that the problem started.

Did all Linc Davis' steps in Safari Corruption - Steps 1 to 3 that solved that problem, and, the two step test procedure. In all cases, Safari bounces once or twice in the dock, then a Problem Report pops up.

ReInstall system software? I do have a TM backup.

Thanks

Finally used the built-in recovery disk to reinstall OS X. All is well now.