Delete Junk Messages in Thunderbird

Today I improved the quality of my life. I've been wondering why in the Hell in Thunderbird there is an option to mark the junk messages as "junk", to move all the junk messages in a particular folder, but... there is NO command to EMPTY that dumb folder!

Sometimes the Thunderbird and Firefox (but particularly the Thunderbird) programmers lose a lot for small defiances. Fortunately, somebody else thought about it, and he came out with an add-on, that I found extremely useful: "Delete Junk Context Menu".