Crash signatures ^{( what's this? )}: 0x0

This crash signature indicates that Firefox's crash reporter was not able to gather enough information about the crash. If you have other crash report IDs, try clicking on another one.

Some crashes with this signature may be caused by a virus called "Dummy Windowless". If you suspect this is the case, see the article Is my Firefox problem a result of malware.

You can also try general troubleshooting steps at Firefox crashes.