On Windows, the CSS menus at newegg.com are dismissed when the cursor moves over a tooltip. To reproduce this, you may need to move down the list somewhat briskly to catch a tooltip before it disappears to another item in the menu.
<rdar://problem/5762038>
*** Bug 20907 has been marked as a duplicate of this bug. ***
We might need to stop using TTF_SUBCLASS and start relaying events to the tool tip ourselves.
Created attachment 48657 [details] Patch
Aah, no ChangeLog, webkit-patch thought I had inconsistent newlines.
Created attachment 48658 [details] Patch
Comment on attachment 48658 [details] Patch So simple! r=me
Landed in r54734.