What happens when 4,500 people ask for the same feature? At Firefox, we build it. Tab groups have long been the most requested idea on Mozilla Connect –
If it’s with the install, it’s from a bad/corrupted update. FF has been on there for ages. Are you on windows 10? I’ve seen it’s a known issue because it’s findable if you Google it. Be a strange bit of a corrupt install, being that it’s the only issue and that it works as expected if you select “exit” instead of hitting the “X”. Regardless, if you’re also on 64bit win10 system and it works normally for you, I’ll do a clean install.
If it’s with the install, it’s from a bad/corrupted update. FF has been on there for ages. Are you on windows 10? I’ve seen it’s a known issue because it’s findable if you Google it. Be a strange bit of a corrupt install, being that it’s the only issue and that it works as expected if you select “exit” instead of hitting the “X”. Regardless, if you’re also on 64bit win10 system and it works normally for you, I’ll do a clean install.