If you've read today's Slate (or if you know anything about computers other than that they turn on and provide access to infinite amounts of porn), you already know about Greasemonkey. If you haven't, click here, read the article, follow the directions and enjoy. Soon you'll be able to cross-reference movies on sites like Netflix, Rotten Tomatoes and Amazon; delete Gmail without having to use that annoying drop-down menu; and, yes, read Boing Boing sans ads. And your Firefox browser will have a cute little monkey head in its bottom stage-left-hand corner. Right now we're working on script to remove The English Patient from IMDb and Teri Hatcher from Earth. Stay tuned!