Rated 5 out of 5 stars
I was looking back and forth at "Copy Link URL" (https://addons.mozilla.org/en-US/firefox/addon/10552) and I ended up installing both. This one makes you right click, choose copy link, and then "selected link" or "all links". So its more useful then "copy link url" but it takes a second later if you want to JUST select the urls you have highlighted.
So this one has one extra feature than the other one! So to me, its the one people should install. "Copy Selected Links" or "Copy All Links".
Great Addon! The only reason I like https://addons.mozilla.org/en-US/firefox/addon/10552, is the fact that once you right click, you can INSTANTLY select "copy selected links". You don't have to navigate through any extra options.