cOsmO's Addons&Themes

by x5c0d3

35 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,799 reviews

2,704,207 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 964 reviews

1,363,522 users

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

iMacros for Firefox by iMacros

Rated 4 out of 5 stars 381 reviews

405,031 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...

User Agent Switcher by chrispederick

Rated 4 out of 5 stars 251 reviews

403,723 users

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

Element Hiding Helper for Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 452 reviews

825,562 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 218 reviews

638,054 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 2,549 reviews

994,552 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.

Flagfox by Dave G

Rated 5 out of 5 stars 636 reviews

655,173 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...

Tamper Data by Adam Judson

Rated 4 out of 5 stars 133 reviews

130,040 users

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

Speed Dial by Josep del Rio

Rated 4 out of 5 stars 1,250 reviews

467,168 users

Direct access to your most visited websites

ColorZilla by Alex Sirota

Rated 5 out of 5 stars 306 reviews

339,959 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 159 reviews

186,874 users

View HTTP headers of a page and while browsing.

BetterPrivacy by IKRG

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...

HttpFox by Martin Theimer

Rated 4 out of 5 stars 164 reviews

112,155 users

An HTTP analyzer addon for Firefox

ColorfulTabs by Shivanand Sharma

Rated 4 out of 5 stars 995 reviews

245,676 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...
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