Hi simplyme4you, If the problem is with the website you will probably need to look elsewhere for webdesign advice. However I may expect bandwidth problems to cause hangs or freezes rather than crashes unless the problem is extreme. Also as it is a commercial site you will need to determine if it is causing problems in Firefox as that could affect business. Does the problem occur if you merely open your site as an ordinary user and leave it open. (If it does it is easy for me or anyone else to test that). I guess though it is likely you need to remain active on the site before problems occur. '''Your site uses Flash Player content and I am guessing the problem could be due to a Flash 11.3 problem. ''' As a test downgrade a machine to use Flash 10.3 and try to reproduce the problem. Instructions for downgrading currently are still here # [[flash 11.3 crashes]] # very good information will also be found in mozillazine articles such as http://kb.mozillazine.org/Flash#Flash_Player_11.3_Protected_Mode_-_Windows NOTE Very recent security [http://www.adobe.com/support/security/bulletins/apsb12-18.html announcement] has resulted in probable change of official Firefox advice; but my personal view, is the exploit apparently requires opening of a manipulated word document, so low risk of using Flash 10.3 in troubleshooting as long as one is careful about what is opened. <u>Crashes</u> If you are actually getting firefox crashes use ''about:crashes'' and post a couple of recent CrashIDs into your next post, preferably from Firefox being used in safe mode with FlashPlayer as the only plugin. If possible;for comparison; also post a couple whilst Flash 10.3 is installed. * see [[Firefox crashes - Troubleshoot, prevent and get help fixing crashes]] * and [[Troubleshoot Firefox issues using Safe Mode]] Post back with more information once you have had time to test out those ideas and read the linked articles. Cheers John -------- The official, not yet updated advice is: Recent crashes of certain multimedia contents (this includes Youtube videos, certain flash games and other applications) in conjunction with Firefox 13 are most probably caused by a recent Flash 11.3 update and/or a malfunctioning Real Player browser plugin. In order to remedy the problem, please perform the steps mentioned in these Knowledge Base articles: [[Flash Plugin - Keep it up to date and troubleshoot problems]] [[Flash 11.3 crashes]] [[Flash 11.3 doesn't load video in Firefox]] Other, more technical information about these issues can be found under these Links: http://forums.adobe.com/thread/1018071?tstart=0 http://blogs.adobe.com/asset/2012/06/inside-flash-player-protected-mode-for-firefox.html Please tell us if this helped!