execute arbitrary bits of JavaScript (bookmarklets and other tidbits) using keystrokes.

"The HTTPS Everywhere extension fixes these problems by rewriting all requests to these sites to HTTPS"

A Unified Notification System for the Web

"In short, Jetpack is an API for allowing you to write Firefox add-ons using the web technologies you already know." html, css & javascript

Image editor in firefox

automatically save some files according to keywords, source url, etc

Add-Art is a free FireFox add-on which replaces advertising on websites with curated art images. The art shows are updated every two weeks and feature contemporary artists and curators.

creates a FF extension from a Greasemonkey Script

gDocsBar is a sidebar extension for firefox, a perfect companion for Google® Docs.

With gDocsBar, you can drag and drop multiple files into the sidebar to upload documents.

You can search and filter documents right from the sidebar.

"CookieSwap enables you to easily swap all your cookies so that you can be logged in to multiple web e-mail accounts (like Gmail and Yahoo! mail) at the same time and quickly switch between them." finally !!

nice slideshows of Flickr/Google/Yahoo/Picasia/Facebook/(etc)... well a nice way to watch pictures.. but there is still room for improvement

"CoScripter is a system for recording, automating, and sharing processes performed in a web browser"

like tabmixplus, lighter... haven't tried this yet

"makes a Firefox browser extension (XPI) from a given Greasemonkey user script."

Firefox extension that synchronize browsers of EVERYONE who installed the extension. Basically, it gets everyone on the same page. You can be passive (let other people browse for you) or active (change the collective current page).

"Monitors web pages for updates. Useful for websites that don't provide Atom or RSS feeds."

"enhances the Full Screen mode into a really full screen mode, hiding the remaining toolbars and statusbar and making them visible again when the mouse pointer hits an edge of the screen"

"allows you to post to twitter from the firefox addressbar"

"Users will see their friends' faces, and by clicking on them will be able to get a list of that person's recently added Flickr photos, favourite YouTube videos, tagged websites, composed blog posts, updated Facebook status, etc."

colouring tabs by domains

the microformat extension

let you customize/replace/add favicons in your Firefox bookmarks

how to write extensions

"The Extension Wizard generates an extension skeleton to meet your needs. It is intended to save the time you would normally spend copying and pasting from your previous extensions or sample extensions."

track your comments on various blogs & websites

MyStickies.com allows you to add post-it notes to any web page. To do so, you need to sign-up for an account and install the Firefox browser extension.

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