Graphics Drivers: Firefox Rendering Issues - Windows 10, Parallels Desktop 11.1.3 (32521)

Since 11.1.1 I've been having rendering issues with Firefox Developer Edition and Firefox release. The content window in Firefox goes black entirely or partially and sometimes displays artifacts from other tabs. The reason I'm posting this here is to see if anyone else has encountered issues with Firefox in PD 11 and that it may be related to the graphics drivers used by PD 11. I used to have my graphics memory set to 1024 MB and it's been recommended by Parallels staff to lower it to 512 MB which I've done. Though it happens less often now, it still is an issue for me.

My Setup:
I'm connected to 2 Cinema HD 1920x1200 Displays on my MacBook Pro - 1st via OWC Thunderbolt 2 Dock 2nd via Thunderbolt 2 to DVI adapter.

Has anyone else come across this?

Parallels Support: What would you guys need from me to look into it?

 

Had a similar issue. Sorry don't have a fix yet

 

Found the fix Hope it helps.