Richard McManus of the Read/WriteWeb blog has published an article on [Firefox browser add-ins](http://www.readwriteweb.com/archives/firefox_add-ons_all_you_need_to_know.php) which includes the top ten list, links to reviews of the “officially” recommended add-ins and some discussion of what will be coming in Firefox 3. Comments give lists and links to other add-ins.

My personal list of addons that I use every day: - [ScribeFire](http://scribefire.com/) addin for blogging. - The [del.icio.us](http://del.icio.us/help/firefox/extension) addin for tagging web pages. - The [del.icio.us Bookmarks](https://addons.mozilla.org/en-US/firefox/addon/3615) replaces Firefox bookmarks with del.icio.us bookmarks. - [Google notebook](http://www.google.com/googlenotebook/faq.html) addin. - [Delegate To Todoist](http://amix.dk/blog/viewEntry/19142) – moves tasks from gmail to on-line to-do list.

Web development tools: - [FireBug](http://www.getfirebug.com/) XHTML/CSS/Javascript/HTTP browser debugger. - The [WebDeveloper](http://chrispederick.com/work/web-developer/) addin. - [IEView](http://ieview.mozdev.org/) “View this page in IE” - [ColorZilla](http://www.iosart.com/firefox/colorzilla/) – eye-drop tool to measure colours (returns CSS colour values) - [MeasureIt](http://www.kevinfreitas.net/extensions/measureit/) – on-screen pixel ruler for measuring element sizes. - [Validaty](http://gemal.dk/mozilla/validaty.html) – validates current web page - [View Source](https://addons.mozilla.org/en-US/firefox/addon/394) with external editor.

Addins that are installed but net yet used in anger: - [Clipmarks](http://clipmarks.com/) - [Zotero](http://www.zotero.org/) – bibliographic data manager - [Greasemonkey](http://greasemonkey.mozdev.org/) JavaScript engine for controlling the browser.

Powered by [ScribeFire](http://scribefire.com/).