"Find [text on page] ..." causes Safari 6.1 to crash.
On certain websites, using the "Find..." menu option will crash the page. It's only started in the past couple days, and I've noticed it the most with Amazon.com.
Exception Name: NSInvalidArgumentException
Description: Unlocking Focus on wrong view (<NSGrayFrame: 0x7fef24b44bf0>), expected <BrowserWKView: 0x7fef21cbf1d0>
User Info: (null)
0 CoreFoundation 0x00007fff8d718f56 __exceptionPreprocess + 198
1 libobjc.A.dylib 0x00007fff97a8dd5e objc_exception_throw + 43
2 CoreFoundation 0x00007fff8d718d8a +[NSException raise:format:arguments:] + 106
3 CoreFoundation 0x00007fff8d718d14 +[NSException raise:format:] + 116
4 AppKit 0x00007fff95b9a4bc -[NSFocusStack unfocusView:] + 194
5 AppKit 0x00007fff95b9a379 -[NSView unlockFocus] + 215
6 AppKit 0x00007fff95b90a0e -[NSView _displayRectIgnoringOpacity:isVisibleRect:rectIsVisibleRectForView:] + 6886
7 AppKit 0x00007fff95b88c35 -[NSView displayIfNeeded] + 1676
8 Safari 0x000000010e75afb3 -[BrowserWindow displayIfNeeded] + 43
9 Safari 0x000000010e6cec7c -[Banner _advanceAnimationWithProgress:] + 966
10 Safari 0x000000010e6b7239 -[Animation setCurrentProgress:] + 67
11 AppKit 0x00007fff95d1b205 -[NSAnimation(NSInternal) _advanceTimeWithTimer:] + 156
12 Foundation 0x00007fff91a03f40 __NSFireTimer + 102
13 CoreFoundation 0x00007fff8d6cd934 __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
14 CoreFoundation 0x00007fff8d6cd486 __CFRunLoopDoTimer + 534
15 CoreFoundation 0x00007fff8d6ade11 __CFRunLoopRun + 1617
16 CoreFoundation 0x00007fff8d6ad486 CFRunLoopRunSpecific + 230
17 HIToolbox 0x00007fff932952bf RunCurrentEventLoopInMode + 277
18 HIToolbox 0x00007fff9329c56d ReceiveNextEventCommon + 355
19 HIToolbox 0x00007fff9329c3fa BlockUntilNextEventMatchingListInMode + 62
20 AppKit 0x00007fff95b4c779 _DPSNextEvent + 659
21 AppKit 0x00007fff95b4c07d -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 135
22 Safari 0x000000010e709d15 -[BrowserApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 161
23 AppKit 0x00007fff95b489b9 -[NSApplication run] + 470
24 AppKit 0x00007fff95dc4eac NSApplicationMain + 867
25 Safari 0x000000010e89dd9c SafariMain + 266
26 Safari 0x000000010e6a4f2c _mh_execute_header + 3884
MacBook Pro, Mac OS X (10.7.3)