logged into mozilla and it ended up in a loop where it kept asking me to turn on caret browsing. every time I hit no it popped right back up immediately. I hit to stop showing the box and clicked no, but now every time I hit the shift key it opens some developer tool box in the bottom of the screen. hitting f7 again does nothing. i can't get the box to come back. i can't make it stop. everything I am seeing online is not helping or references tools or options that i can't locate in firefox. please help.