file:///C:/Program%20Files%20(x86)/Mozilla%20Firefox/components/nsExtensionManager.js:2309
When attempt to open Firefox get notice of can't run script:file:///C:/Program%20Files%20(x86)/Mozilla%20Firefox/components/nsExtensionManager.js:2309
Crash ID(s)
does not open to give crash ID
User Agent
Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US) AppleWebKit/531.22.7 (KHTML, like Gecko) Version/4.0.5 Safari/531.22.7
Alla svar (1)
Does the issue still occur if you start Firefox in Safe Mode? http://support.mozilla.com/en-US/kb/Safe+Mode
See some reports that the Ask.com toolbar is causing the issue https://support.mozilla.com/tiki-view_forum_thread.php?locale=en...
If Safe Mode works and you have the Ask toolbar installed I recommend you uninstall it.