An alpha version of a 1Password extension for Chrome. Seems stable enough to me.

A Chrome extension that adds vim-like features.

Google Browser Sync replacement, with more features. Thank goodness: I'd really started to rely on GBS since I got the Eee.

"Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page."

Rather slick-looking note-taking and research extension for Firefox.

"Click the toolbar button to go to the site that first referred you to the current site." Great for tab-crazy types.

Insanely handy Firefox extension that lets you trick the latest beta into working with your existing extensions. Most of the 20-odd I use appear to work fine with 2.0b2.

Firefox extension that saves entire webpages as images.

Greasemonkey-esque plugin for Safari. Only there's no mention of any available scripts, no hints as to how one might get started writing scripts, so fuck knows whether it actually works.

"Back IS Close replaces the "Back" button with a "Close" button when the "Back" button is disabled because there is no page to go "back" to."

Exposé-like tab viewer

It's a Firefox extension. For posting to del.icio.us.

Tab Preview is an extension for Firefox 1.5 that shows a preview of tab contents when you move your mouse over a background tab. It's simple to use, but surprisingly useful.

The tab sidebar extension, if you haven't heard of it already, provides a sidebar in the browser that can act as a replacement to the main tab bar, with extras. The most obvious extra is that each tab includes a preview of the web page that is continually

"StumbleUpon is an intelligent browsing tool for sharing and discovering great websites. As you click Stumble!, you'll get... pages [that] have been explicitly recommended (rated I like it) by friends and other SU members with similar interests"

Greasemonkey for IE.

Notes on, and a handy example of, Microsoft's Simple List Extensions to RSS 2.0

Interesting extensions to RSS from Microsoft, under a CC license. Of course, we won't be seeing how they use them in Longhorn for another decade or so.

"Piggy Bank is an extension to the Firefox web browser that turns it into a “Semantic Web browser”, letting you make use of existing information on the Web in more useful and flexible ways."