Invaluable

by martimus8

18 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,301 reviews

18,672,986 users

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,320 reviews

2,193,669 users

The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.

FlashGot Mass Downloader by Giorgio Maone

Rated 5 out of 5 stars 431 reviews

1,207,790 users

Download all the links, movies and audio clips of a page at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers.

Web Developer by chrispederick

Rated 5 out of 5 stars 183 reviews

703,603 users

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

Tab Mix Plus by onemen, Gary Reyes

Rated 4 out of 5 stars 2,176 reviews

1,089,837 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.

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 136 reviews

193,927 users

View HTTP headers of a page and while browsing.

RefControl by James Abbatiello

Rated 4 out of 5 stars 151 reviews

103,791 users

Control what gets sent as the HTTP Referer on a per-site basis.

DOM Inspector by SeaMonkey Council

Rated 5 out of 5 stars 55 reviews

147,983 users

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.

ImgLikeOpera by Danil Ivanov

Rated 4 out of 5 stars 284 reviews

157,212 users

ImgLikeOpera allows load only the images that you want in Firefox browser. This extension is very useful for non broadband users...

CookieCuller by Dan Yamaoka

Rated 4 out of 5 stars 131 reviews

22,038 users

Delete unwanted cookies

Nuke Anything Enhanced by Patrick Abi Salloum

Rated 5 out of 5 stars 117 reviews

23,195 users

Allows you to hide almost anything via context menu 'Remove Object'.

Console² by Philip Chee, zeniko

Rated 5 out of 5 stars 45 reviews

16,162 users

Console² (pronounced Console Squared or Console Two) replaces the JavaScript Console with what could be the next generation Error Console. From v0.5 includes the Console Filter extension previously available separately from the Console² website.

Feed Sidebar by Christopher Finke

Rated 4 out of 5 stars 96 reviews

10,460 users

The Feed Sidebar is an extension for Firefox that displays the items from your Live Bookmarks in the sidebar.

RefreshBlocker by Clemens Fuchslocher

Rated 3 out of 5 stars 49 reviews

4,089 users

RefreshBlocker is a small extension for the Firefox web browser. This extension will prevent your browser from following the forwarding specified by the refresh parameter of the META tag element.

Regular Expressions Tester by Sebo

Rated 4 out of 5 stars 23 reviews

6,657 users

Testing tool for regular expressions with color highlighting (including submatches) and helpers for creating expressions
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