I'm sorry if this is a dupe. I've spent the last 30 minutes looking through bugzilla for a match. Anyways, here's what's going on: Open a window. Type in a url (google.com). Create a new tab. Load something into the new tab's context. Right/control click on the former window and hit "Close Tab". The result is that the entier window disappears, to be replaced by a grey context. If you create a new tab, the content will magically reappear in the old tab. Note: this only happens when killing the background tabs on the left. Ones on the right have no difficulties with this. This happens with the window -> two tab transistion as well as the 2->3+ tabs transistion. I'm seeing this on Jaguar and a recent nightly: Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en-US; rv:1.2b) Gecko/20021101 I also noticed this behaviour on the 1.2b release. I'll write the build # in here in a second (the nightly forced me to move my Library Folder). If this is not a dupe, I think it should be fixed for 1.2 final. -Brett

My 1.2beta release build is: Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en-US; rv:1.2b) Gecko/20021016 -Brett

*** This bug has been marked as a duplicate of 173703 ***