User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.3) Gecko/20030312 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.3) Gecko/20030312 This site uses such trick: first function OpenFullScreen(parameter) is defined, and then a reference to this function is passed via the parameter in the Flash animation PARAM e.g. <PARAM NAME=movie VALUE="sniffer2002.swf?URL=javascript:openFullScreen(\'_mainsite_flash/index.php\') "> I don't know much about Flash, but I assume that it can use this reference to call function. The effect is unrequested window whitout any reaction from the browser. Of course I have the option Edit -> Preferences -> Privacy & Security -> Popup Windows set to 'Supress Popups', ando also no exceptions are defined. Reproducible: Always Steps to Reproduce: 1.make sure you have the 'Supress popups' turned on 2.go to the specified URL 3.watch and curse Actual Results: The pop-up window appeared Expected Results: It shouldn't open the window. It should show the icon and/or play the sound (it depends on the settings).

Nothing to do with JavaScript Engine!!! Reassigning to Browser-General. There are many ways sites can try to get around popup blocking. Compare bug 144726, "Can use form.submit() to circumvent popup blocking, window.open() prefs"

*** This bug has been marked as a duplicate of 176079 ***