Every day I get e-mails with long URLs that are split onto multiple lines and I have to reconstruct the damn URL by copying and pasting every damn line one at a time into the location bar of my browser. Well today I had enough, and as always I turned to my good friend Google to solve my troubles. Sure enough, he found this concise article: Making Firefox Handle Multiline Pasted (“Broken”) URLs.
Now I can copy and paste once and the entire URL is nicely placed into my location bar. This little hidden nugget makes me wonder what other wonderful annoyance-ridding features lie beneath the surface of Firefox preferences.
Note: If you have no clue how to work with the user.js file described in the above article, read this Mozilla Help page first.