https://support.mozilla.org/en-US/kb/Firefox%20crashes

We're sorry to hear that your Firefox seems to be crashing. Please perform the following steps to give us a crash report ID that helps us find out more about the cause of the crash.

1. Enter about:crashes in the Firefox location bar (that's where you enter your website names) and press Enter. You should now see a list of submitted crash reports.
2. Copy the most recent 5 report IDs that you see in the crash report window and paste them into your forum response.

Thanks in advance for your help!

More information and further troubleshooting steps can be found in the Troubleshoot Firefox crashes (closing or quitting unexpectedly) article.

bp-9cb968ca-2654-4ed7-8c53-649d821301161/16/20134:05 PM49949436-1e84-4a21-bc63-a00c737a36c4-browser1/16/20132:42 PM49949436-1e84-4a21-bc63-a00c737a36c41/16/20132:41 PMbp-1048dd6e-2a2e-4542-a93b-67a2321301161/16/20131:43 PMbp-7208aacc-3072-4549-91a5-36a1121301161/16/20131:23 PMbp-cbf8b468-c29d-4478-b615-e8a502130116

Hope this will help.

So that is a bug in Flash. Please update to the latest version of Flash, https://www.mozilla.org/plugincheck/, then reset Firefox. Refresh Firefox - reset add-ons and settings

This solved the problem, thank you very much! It was a little time consuming, but worth it.