firefox no longer starts - could it be wayland package?

Running on gnome This may have to do with updated updated wayland package (1.22.0-1) - didn't see much else that may be related. I tried rolling back firefox and makes no difference - I also tried with and without MOZ_ENABLE_WAYLAND - always get instant crash with: ExceptionHandler::GenerateDump cloned child 5628 ExceptionHandler::SendContinueSignalToChild sent continue signal to child ExceptionHandler::WaitForContinueSignal waiting for continue signal... Anyone else seeing similar and any suggestions for fix? thanks gene