My Favorite Add-ons

by Anderson Guarnier da Silva

26 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 4 out of 5 stars 2,071 reviews

1,754,935 users

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...

LastPass Password Manager by LastPass

Rated 4 out of 5 stars 1,708 reviews

731,025 users

LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 1,058 reviews

1,115,812 users

Customize the way a web page displays or behaves, by using small bits of JavaScript.

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 270 reviews

299,428 users

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Tab Mix Plus by onemen, Gary Reyes

Rated 4 out of 5 stars 2,394 reviews

712,130 users

Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager.

Web Developer by chrispederick

Rated 5 out of 5 stars 262 reviews

404,581 users

The Web Developer extension adds various web developer tools to the browser.

Provider for Google Calendar by Philipp Kewisch

Rated 4 out of 5 stars 922 reviews

346,879 users

Allows bidirectional access to Google Calendar

Evernote Web Clipper by Evernote

Use the Evernote Web Clipper to save things you see on the web into your Evernote account.

Xmarks Sync by Xmarks Inc.

Rated 4 out of 5 stars 2,491 reviews

260,172 users

Xmarks is the #1 bookmarking and open tab add-on. Keep your bookmarks, and open tabs backed up and synchronized across computers and browsers. Mobile phones with Premium access. Utilize LastPass to sync passwords!

Save Link in Folder by Achim Seufert

Rated 4 out of 5 stars 43 reviews

3,840 users

Easily save links in personally customized...

JSONView by Ben Hollis

Rated 5 out of 5 stars 177 reviews

108,515 users

View JSON documents in the browser.

All-in-One Sidebar by Ingo Wennemaring

Rated 5 out of 5 stars 1,450 reviews

155,485 users

AiOS lets you open various windows as sidebar panels, and quickly switch between them. So it put an end to the window chaos! In addition to bookmarks and history it opens dialogues such as downloads, add-ons and more in the sidebar.

YSlow by YSlow

Rated 3 out of 5 stars 221 reviews

61,072 users

YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages.
http://yslow.org is the official open source website.

IE Tab + (FF 8+, 7, 6, 5, 4, 3.6, 3.5, SeaMonkey) by IE Tab Pro

Rated 3 out of 5 stars 88 reviews

64,334 users

IE Tab + is an enhanced version of IE Tab. It supports FF 3.5 or greater, integrates IE Tab with Adblock Plus in the IE Tab engine, and synchronizes cookies between IE and Firefox. You can easily import settings from the original IE Tab into IE Tab +

FirePHP by cadorn

Rated 4 out of 5 stars 50 reviews

33,441 users

FirePHP enables you to log to your Firebug Console using a simple PHP method call.

Not using Firebug 1.9+ on Firefox 8+? See http://firephp.org/
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