My Favorite Add-ons

by Martin Schejbal

14 Add-ons in this Collection

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 5 out of 5 stars 1,761 reviews

2,281,256 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 943 reviews

1,245,714 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 368 reviews

510,100 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...

Web Developer by chrispederick

Rated 5 out of 5 stars 206 reviews

573,519 users

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

Flagfox by Dave G

Rated 5 out of 5 stars 625 reviews

648,976 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...

Webpage Screenshot in Firefox (♥♥♥♥♥) by susbox

Rated 5 out of 5 stars 425 reviews

253,014 users

FireShot Webpage Screenshots captures pages entirely. Demo: http://bit.ly/RlBQMV

The screenshot can be quickly captured and:

― Saved as Image or PDF
― Sent to clipboard
― Printed
― Annotated *
― Uploaded *
― E-Mailed *

* OS Windows only

Live HTTP Headers by Daniel Savard, Nikolas Co

Rated 4 out of 5 stars 154 reviews

172,269 users

View HTTP headers of a page and while browsing.

Download Manager Tweak by squashr1979, andman42

Rated 4 out of 5 stars 399 reviews

87,730 users

Allows the download manager to also open in a tab or sidebar, and adds some optional display changes.

SeoQuake SEO extension by SeoQuake Team

Rated 4 out of 5 stars 206 reviews

62,659 users

Seoquake is a Firefox SEO extension aimed primarily at helping web masters who deal with search engine optimization (SEO), social media optimization (SMO) and internet promotion. Seoquake allows to investigate many important SEO parameters.

ChatZilla by Gijs Kruitbosch, Robert Ginda, others

Rated 4 out of 5 stars 125 reviews

156,545 users

A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.

SEO Doctor by vprelovac

Rated 4 out of 5 stars 71 reviews

19,363 users

SEO Doctor allows easy SEO diagnosis and problem solving for webmasters.

Screengrab by Andy M

Rated 4 out of 5 stars 589 reviews

30,925 users

Screengrab! saves webpages as images... but not for new versions of Firefox.

FF changes too fast and I don't have the time to maintain it anymore. Bugs have developed that I am not in a position to investigate.

Therefore, Screengrab is EOL.

Zindus by Leni Mayo

Rated 4 out of 5 stars 206 reviews

34,364 users

Google and Zimbra contact sync for Thunderbird. (TB 24 and above NOT supported)

Gmail Notifier by Doron Rosenberg

Rated 4 out of 5 stars 622 reviews

28,555 users

Note from Mozilla: This add-on has been discontinued. Try WebMail Notifier instead.

The original notifier for Gmail.

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