User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.5) Gecko/2008121622 Fedora/3.0.5-1.fc10 Firefox/3.0.5 Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.5) Gecko/2008121622 Fedora/3.0.5-1.fc10 Firefox/3.0.5 If I browse to http://scan4new.com/22/?uid=114 I get a fake Windows desktop which pretends to be scanning my C drive and recommends downloaing some malware. It keeps popping up pop-ups. It is impossible to kill all the pop-ups. The only way to kill it is to force-kill firefox. Making this worse is that when the pop-up is active I cannot switch to another tab - the entire UI is unresponsive until all the pop-ups are closed - which is impossible. It seems a fundamental bug if a pop-up windows can disable the entire Firefox UI - no menus work, clicking in a tab doesn't work, closing the firefow window doesn't work. This is unacceptable. Another suggestion: Perhaps the "Stop loading this page" button could be dual-purposed to stop an JavaScript running in the current tab/window? Reproducible: Always Steps to Reproduce: 1. 2. 3.

fwiw, I could close that tab with Ctrl-W while hitting Enter to close the alerts.