Hi I've been using Firefox as my default browser since netscape navigator. I now find myself in the position where it has become unusable as it causes my screen to go black. I've tried ALL the online fixes such as troubleshooting and relaunching in safe mode - none seem to work for very long. It is with great dismay that I am now having to move to Opera or similar. It's clear from other posts that this is an issue affecting many. It appears that it is conflicting with video drivers (I'm on a mac pro with a Nvidia gtx 1080 ti gpu) and who knows what else it's corrupting. My question to you is - Are you going to fix this? and if so when? - Until it is fixed Firefox has become unusable (at least on my older macs which I still use). Regards Steve