My Favorite Add-ons

by harrison3001

441 Add-ons in this Collection

Close Button by Isaac

Rated 4 out of 5 stars 60 reviews

7,021 users

Adds a Close Tab (or Window, or Browser) button to the toolbar, so you can put it where you want it. The appearance follows your current theme.

Google Documents Viewer by Romain B.

Rated 3 out of 5 stars 1 review

2,573 users

Open documents in Google Docs Viewer with a simple right click.
View PDF, DOCX, XLSX and much more online with Google Docs Viewer.

Sea Fox by patrickjdempsey

Rated 5 out of 5 stars 6 reviews

482 users

Transform SeaMonkey into Firefox 3.x

Download Panel Tweaks by Dagger

Rated 5 out of 5 stars 28 reviews

6,209 users

A collection of random tweaks for the Download Panel.

URL to QR code by KralcW

Rated 4 out of 5 stars 9 reviews

3,023 users

Create a QR code (generated via the Google Charts API) from the current tab's URL or selected text. It is useful for quickly opening a webpage on a mobile device, for example.

HTML5toggle by fpmurphy

Download Now


Rated 2 out of 5 stars 14 reviews

1,129 users

Turn on or off browser support for HTML5

Stylish Tools by Ken Saunders

Rated 4 out of 5 stars 1 review

1,083 users

Quicker access to several Stylish features through a toolbar button and/or keyboard shortcuts. Available for Firefox, Thunderbird, and SeaMonkey

Lightning QR Code Add-on by Harald Judt

Rated 5 out of 5 stars 7 reviews

3,640 users

Integrate QR codes for calendar events into tooltips for easy transfer to mobile devices.

UI Fixer by Nikola Kocić

Rated 4 out of 5 stars 70 reviews

5,854 users

Change location of Status Bar Icons, Firefox Menu Button and Menu Bar and more.

CoLT by Jonah Bishop

Rated 5 out of 5 stars 93 reviews

7,767 users

CoLT (short for "Copy Link Text") makes it easy to copy either a link's text, or both the link text and its URL in a format you specify. This non-invasive extension simply appears as context menu items when you right-click a link. Fully customizable!

FireRainbow by BinaryAge, Jan Odvarko

Rated 4 out of 5 stars 44 reviews

6,241 users

Javascript syntax highlighting for Firebug

Edit Bookmark Plus by Kashif Iqbal Khan

Rated 4 out of 5 stars 60 reviews

3,783 users

Resize 'Add Bookmark' Popup / 'Edit This Bookmark' Popup, fixes tree selection bug, option to disable popup auto close & Update Url and/or Name of a bookmark with the Url/Title of current page.

Replacement of OpenBook addon

Validator by Teun van Eijsden

Rated 3 out of 5 stars 10 reviews

2,755 users

Firebug extension to validate HTML.

Organize Status Bar (Revived) by AlexancarlProject

Rated 4 out of 5 stars 12 reviews

2,337 users

This extension will enable you to organize your status bar icons. You can now rearrange or remove any item (icon or text) in the Firefox status bar. If your status bar is full and cluttered like mine was, give this a try. ...y5

Tab Badge by Geoff Lankow

Rated 4 out of 5 stars 104 reviews

11,986 users

Adds a small badge to your tabs to alert you to (for example) new messages on Facebook. The badge is also visible when the tabs are pinned so you can see when there's something new available.
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