That looks like a problem with this DLL that shows in the crashing thead of the crash report: ftrdpendp.dll I'm not sure of what application this file is part of (maybe some audio software), so you need to check that and contact its creator for support.

Thanks! Apparently it was the FabulaTech Sound over RDP software I installed. I remove it and Firefox back to working again. Cheers!

You're welcome and thanks for confirming what software this is about.