Hello, I am managing Firefox for a large organization. We are installing Firefox on 3 environments and never had any issues until version 78. I made a deployment package for version 78.0.2 ESR and pushed it to around 100 test machines. Everything works fine on VDI and desktop, but on the Surface which is the main device used by around 15000 users the browser doesn't do anything. Sometimes even the menu seems to be frozen. We use GPO to customize the browser, so no Firefox accounts, no Sync, no Pocket and other functions are disabled. Even so, as i mentioned, VDI and Desktop work normally. (also tested with 78.4.1 today, same behaviour) Another point is, version 68.6.1 ESR works fine on the same Surface device. Any ideas? Thanks!