FireFox Extensions I'm using

Here's what I'm using with the latest version of FireFox Browser (v1.5)
LinkPreview - When you hover over a url, it shows you a thumbnail of the page.
Google Toolbar -Obvious
Adblock -Additional pop-up blocking functionality
Tab Preview -When you hover over a tab, it shows you an image of your current page.
IE Tab -Allows you to open an IE page within Firefox. Helpful for yahoo mail that doesn't support rich text in Firefox.
Yahoo Toolbar -Obvious