by narcelio

25 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,978 reviews

21,264,596 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).

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,793 reviews

2,211,735 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...

DownThemAll! by Nils Maier, Federico Parodi, others

Rated 5 out of 5 stars 1,612 reviews

1,366,719 users

The first and only download manager/accelerator built inside Firefox!

Greasemonkey by Anthony Lieuallen, Aaron Boodman, others

Rated 4 out of 5 stars 958 reviews

1,261,584 users

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

NoScript Security Suite by Giorgio Maone

Rated 5 out of 5 stars 1,502 reviews

2,260,895 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.

iMacros for Firefox by iMacros

Rated 4 out of 5 stars 382 reviews

436,229 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...

Stylish by Jason Barnabe

Rated 4 out of 5 stars 754 reviews

671,459 users

Restyle the web with Stylish, a user styles manager. Stylish lets you easily install themes and skins for Google, Facebook, YouTube, Orkut, and many, many other sites. You can even customize Firefox and other programs themselves.

Web Developer by chrispederick

Rated 5 out of 5 stars 217 reviews

557,677 users

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

ReloadEvery by Jaap Haitsma

Rated 4 out of 5 stars 676 reviews

169,576 users

Reloads web pages every so many seconds or minutes. The function is accessible via the context menu (menu you get when you right click on a web page) or via tab context menu (right click on the tab)

Session Manager by Michael Kraft

Rated 4 out of 5 stars 567 reviews

283,953 users

Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 157 reviews

169,414 users

View HTTP headers of a page and while browsing.

Tree Style Tab by Piro (piro_or)

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Rated 4 out of 5 stars 1,221 reviews

101,367 users

Show tabs like a tree.

JSONView by Ben Hollis

Rated 5 out of 5 stars 133 reviews

97,946 users

View JSON documents in the browser.

Poster by Alex Milowski

Rated 4 out of 5 stars 61 reviews

47,267 users

A developer tool for interacting with web services and other web resources that lets you make HTTP requests, set the entity body, and content type. This allows you to interact with web services and inspect the results...

Brazilian Portuguese Dictionary (New Spelling) by jhultmann

Rated 4 out of 5 stars 23 reviews

48,100 users

The same spellchecker shipped with the Brazilian version of Firefox.
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