Flash -- make sure Flash is up to date -- http://www.adobe.com/software/flash/about/ *the current Flash is 10.3.181.34 -- "More system details" on this page only shows "Shockwave Flash 10.3 r181" which in insufficient to tell if you are up to date or not. *:also check all plugins through the '''about:plugins''' link *:to http://www.mozilla.com/plugincheck/ *http://support.mozilla.com/en-US/kb/Managing%20the%20Flash%20plugin *KwiClick a search add-on and may interfere with Flash ([https://support.mozilla.com/en-US/questions/836717 836717]) Some people will have a problem with Hardware acceleration, right-click in the flash area, click in settings..., then see if change setting makes a difference. Keep in mind that is Adobe is notorious for bundling crapware with their offerings and updates (McAfee Security Scan, Google Chrome, Adobe Air), also see other ''[http://www.calendarofupdates.com/updates/index.php?act=calendar&cal_id=1&code=showevent&event_id=44514 Installers of Shame]'')