I have to write out formulas in Google Docs, I did so last year as well and I have never had any issues. Now, every time I give the command [cmd] + [,] (which is the appropriate command in Docs) for subscript, it opens Firefox settings. This is driving me insane, the manual way of doing this requires a lot of clicking, and I need subscript every other letter almost. I have tried to figure it out with other posts but I am not a hero in using the config thing that people in other posts refer to. Hope you can help.