View any page and then go back, either by pressing the back button or delete, crashes the app completely but leaves OS X fine.
Happens on several other sites as well, but seems most reproducible on forums.
Please attach a crash log to the bug report: <http://webkit.org/quality/crashlogs.html>.
i can confirm this, attaching my crash report.
Created attachment 21614 [details]
webkit back button crash
GreaseKit appears to be responsible for this.
6 info.8-p.GreaseKit 0x176f9b01 JSValueForKey + 175
7 info.8-p.GreaseKit 0x176f6b62 -[Info8_pCMController evalScriptsInFrame:force:] + 401
8 info.8-p.GreaseKit 0x176f6f18 -[Info8_pCMController progressFinished:] + 124
If it still crashes after uninstalling GreaseKit, please reopen this bug and attach a new crash log.
shoot -- seems as though you're right. thanks, all better.