:Why Firefox Rocks on Linux: Great Firefox Tricks, Part III
Why Firefox Rocks on Linux: Great Firefox Tricks, Part III Nov 6, 2008, 21 :35 UTC (0 Talkback[s]) (5746 reads) (Other stories by Akkana Peck)
"Linux offers Ctrl-C/Ctrl-V paste just like Windows and Mac (Cmd-C/Cmd-V on Mac). But it also has a second way of copying and pasting: anything you highlight with the mouse is automatically copied into X's "Primary" selection buffer -- which doesn't change whatever you might have copied with Ctrl-C -- and you can paste it pretty much anywhere by clicking the middle mouse button. If you're on a laptop and don't have a middle button, try clicking the left and right buttons together. If you've been using Linux for a while, you probably already knew all that.
"What a lot of people may not know is that Firefox, and most other Linux browsers, give you a shortcut for pasting URLs. Instead of the three step process of clearing the URLbar, middlemouse pasting, and hitting Return, just click your middle button with the mouse somewhere in the content area -- the main part of the browser window. Firefox will go straight to whatever URL you've selected with the mouse."