Better Gmail
Add useful extra features and skins to Gmail, like hierarchical labels, macros, file attachment icons, and more.
ThumbStrips
ThumbStrips is a Firefox extension that creates a filmstrip of thumbnails — ThumbStrip, get it? — so you can see your history, and stop guessing at page names in the history sidebar. You can even share your ThumbStrips! After you install it, a small icon will appear in your browser’s toolbar. Click the icon to view your ThumbStrips at the bottom of the screen.
BlogRovr
You don’t have time to read ALL those Blogs! Let RovR do it for you. RovR fetches posts from your favorite blogs about anything you’re browsing, and shows you summaries you can open read posts without leaving the web page you were on. BlogRovR also suggests popular items AND lets you Twitter about any site you’re on too.
Read It Later 0.9821
Read It Later allows you to save pages of interest to read later. It eliminates cluttering of bookmarks with sites that are merely of a one-time