Cannot close a browser window without closing the entire browser
Basically what it says on the title. When studying for exams, I split my browser into two windows, and when I closed one, it closed the entire browser. I tried this again, still did the same thing. When I tried to merge the tab back into the browser, it closed as well. I'm extremely confused, as there's no extensions I have that could have been causing this. I've been using the same extensions since the beginning, nothing has changed. Help?