cOsmO's Addons&Themes

by x5c0d3

37 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,650 reviews

2,866,444 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...

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 868 reviews

1,623,557 users

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

iMacros for Firefox by iOpus

Rated 4 out of 5 stars 342 reviews

297,333 users

Automate Firefox. Record and replay repetitious work. If you love the Firefox web browser, but are tired of repetitive tasks like visiting the same sites every days, filling out forms, and remembering passwords, then iMacros for Firefox is the soluti...

Element Hiding Helper for Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 373 reviews

928,742 users

Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.

Web Developer by chrispederick

Rated 5 out of 5 stars 183 reviews

749,244 users

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

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 198 reviews

450,265 users

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

Flagfox by Dave G

Rated 5 out of 5 stars 581 reviews

825,980 users

Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...

Tab Mix Plus by onemen, Gary Reyes

Rated 4 out of 5 stars 2,177 reviews

1,125,263 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.

BetterPrivacy by IKRG

Rated 5 out of 5 stars 385 reviews

627,057 users

Remove or manage a new and uncommon kind of cookies, better known as LSO's.The BetterPrivacy safeguard offers various ways to handle Flash-cookies set by Google, YouTube, Ebay and others...

Latest updates: See bottom link 'version history'!

Speed Dial by Josep del Rio

Rated 4 out of 5 stars 1,105 reviews

515,949 users

Direct access to your most visited websites

Tamper Data by Adam Judson

Rated 4 out of 5 stars 115 reviews

138,840 users

Use tamperdata to view and modify HTTP/HTTPS headers and post parameters...

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 284 reviews

311,573 users

Advanced Eyedropper, Color Picker, Gradient Generator and other colorful goodies...

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 136 reviews

205,777 users

View HTTP headers of a page and while browsing.

ColorfulTabs by Shivanand Sharma

Rated 4 out of 5 stars 863 reviews

288,705 users

The most beautiful yet the simplest add-on that makes a strong colorful appeal. Colors every tab in a different color and makes them easy to distinguish while beautifying the overall appearance of the interface. For Seamonkey & Flock. An essential. F...

HttpFox by Martin Theimer

Rated 4 out of 5 stars 154 reviews

118,676 users

An HTTP analyzer addon for Firefox
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