Hi, I'm using the last release of Mozilla FireFox at home and at work. My problem have been encountered at work after closing a window of Mozilla Firefox where i have done the configuration of a Cisco Firewall. The Cisco configurator use Java. I've updated the java platform, re-installed firefox but the problem is still present. In fact, the Firefox window is closed but, in taskmanager, firefox.exe is still here, java tray icon too, and i can't open a new window of Firefox before killing the firefox.exe. Thanks. Bye. Sorry for my English, i'm a French guy :o

*** Bug 275932 has been marked as a duplicate of this bug. ***

I have seen this behavior on XP, and Windows2K also - closing FF and being told that it's already open the next time I try to use it. It is perhaps related to the clumsy memory management: FF uses 100% of the CPU capacity (as reported by the Task Manager) when doing something simple like changing already-loaded tabs. It hangs for 1-10 seconds, sucking up 100% of the available CPU cycles, then does the change. The amount of memory the process is using increases steadily over time as I use FF. It starts with about 14,000K and rises constantly. Closing tabs and windows does not release all the memory it has grabbed: if you go back to one window with one tab you never get back all the RAM that was used. I had 3 windows with 2-5 tabs in each open, using 110,800K. I closed all but this one, and it is still taking 88,320K to write this bug comment.

Happened exactly the same to me, with Win2K.

*** Bug 278521 has been marked as a duplicate of this bug. ***

Same exact for me, too. Even keeps some other programs from running, too. Only specific one I can think of off hand was the install program for Basilisk II JIT. Windows XP SP2. Same problem on XP SP1 on my Thinkpad, too.

Same here, using Gecko/20050119 Firefox/1.0+. Tabs working fine. Using default theme.

*** This bug has been marked as a duplicate of 239223 ***