February 13, 2005: Greasemonkey is a plugin for Firefox that "lets you to add bits of DHTML ('user scripts') to any webpage to change it's behavior." As a designer, there's a side of me that hates the idea that someone might use CSS to make my pages look like useit.com. But as a user I love the fact that I can fix annoying UI issues, many of them small enough (or me-specific enough) that I'd never expect (or want) the "fix" to get hard-coded.