It is a folder in program files (x86)\common files\ When I mouse hover over any of the EXEs it says it is a Firefox program. Google tells me nothing. The problem is, it (the update.exe) keeps causing games to minimize whilst I am playing. I know this, because I installed Windows Focus Logger. I ended up deleting it. So far I have had no issues with Firefox functionality. What is it for ? And why is Update trying to phone home ? And why is it ignoring all Windows 10's settings to not grab focus ?