Is this a regression, or has it always been a bug in Mozilla?
Other similar bugs seem to indicate that this bug has been around for a long, long time. I also have some additional information on what's going on: When the cursor travels over one of the popups' across the iframe border beneath it, the containing frame/window gets a NS_MOUSE_EXIT message. This explains why the 2nd popup vanishes as soon as the cursor crosses the border; however, I can't explain why the first one stays bold.
Yeah, I think this is a dupe of a very old bug that is assigned to me. I can't find it right now. The problem is that NS_MOUSE_EXIT events fire when we cross native widget boundaries, and those turn into DOM mouseouts, even if the cursor is still actually over the same element.
*** Bug 240973 has been marked as a duplicate of this bug. ***
*** Bug 240115 has been marked as a duplicate of this bug. ***
Changing OS/Hardware to All/All (comment #5 and my own observations.)
Dupe of bug 125386?
only drivers can set (+) blocking flags. you can request (-) them
is anyone still seeing this?
This has been fixed. Please reopen if y ou can reproduce with a nighlty trunk build. *** This bug has been marked as a duplicate of 125386 ***
Sweet - Even seemed to get rid of some other layer issues that I've been seeing. Take the rest of the day off! :]