A mozilla extension (an .xpi file) is in fact a zip formated file. If your browser (IE, I guess) downloaded it the wrong way as a .zip file, you just have to rename it as an .xpi file to be able to install it.
If you don't know how to install a mozilla extension, here is a small guide.
Creation date :21/06/2007 @ 20:57Last update :21/06/2007 @ 21:05
