When using the rich text editor to put in notes on a case, I sometimes try to move to the beginning of the line with the keyboard shortcut, but that happens to be the same keyboard combination as the browser 'back' command (command+arrow left). Line forward (command+arrow right), word forward (option+arrow right), and word back (option+arrow left) all work, but if I use line back, I end up going back to the previous page and losing all the text I've written. Can this be tweaked so line back doesn't navigate the browser while the rich text editor has focus? Or, if that's not an option, is there a way to have the text reappear when I navigate forward again?
This is on a Mac, Firefox.