Some people hate the back button, but I for one use it like it's going out of style. Well, maybe that's an exaggeration. Either way, going back is a necessity sometimes. Going back to your ex? No. Going back to your high school haircut? Maybe not. Going back a web page? Yes.
So if you ever need to quickly go back a page in Firefox without using your mouse, you can use the shortcut Command+Left Arrow, and go back to your previous page. I have all kinds of handy Firefox keyboard shortcuts here, but do you have any cool shortcuts to share? Go ahead, you know you want to tell us in the comments!