Thunderbird - mail

by sloprlek

192 Add-ons in this Collection

Adblock Plus by Wladimir Palant, Eyeo

Rated 5 out of 5 stars 6,436 reviews

13,626,187 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).

1-Click YouTube Video Download by The 1-Click YouTube Video Download Team

Rated 4 out of 5 stars 721 reviews

591,107 users

The simplest YouTube Video Downloader for all YouTube sites, period.

LastPass Password Manager by LastPass

Rated 4 out of 5 stars 3,468 reviews

733,350 users

LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.

Google Translator for Firefox by nobzol

Rated 4 out of 5 stars 565 reviews

598,636 users

With this addon you can translate any text to your own language with one click or hot-key. You can either translate the selected text, this way the translated text will overwrite the original selected text, or you can translate the full page too.

Greasemonkey by Anthony Lieuallen

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

Google Translate, ImTranslator, Dictionary, TTS by Smart Link Corporation

Rated 4 out of 5 stars 520 reviews

206,034 users

COMPLETELY REDESIGNED TRANSLATOR FOR FIREFOX
ImTranslator translates text, words, webpages between more than 90 languages.
NEW: Inline Translator, Dictionary, access to Google Translate, Microsoft Translator. Unique on the fly localization.

Firebug by Joe Hewitt, Jan Odvarko, others

Rated 4 out of 5 stars 2,444 reviews

1,081,229 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...

FoxyProxy Standard by Eric H. Jung

Rated 4 out of 5 stars 528 reviews

174,345 users

FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.

Stylish - Custom themes for any website by userstyles.org

Rated 4 out of 5 stars 1,151 reviews

347,920 users

Stylish lets you customize any website with custom user styles (themes for websites). Choose from the largest userstyles library to change the color scheme, background, and skin for Google, Facebook, YouTube and many, many more sites.

Lightning by Mozilla Calendar Project

Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.

Web Developer by chrispederick

Rated 4 out of 5 stars 403 reviews

280,886 users

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

FlashGot Mass Downloader by Giorgio Maone

Rated 5 out of 5 stars 701 reviews

425,784 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.

NetVideoHunter by netvideohunter

Rated 4 out of 5 stars 478 reviews

156,768 users

This add-on is a downloader that lets you easily download videos from sites like Youtube, Facebook, Metacafe, Dailymotion, Break, VKontakte and music for example from SoundCloud, Grooveshark and from many other sites...

Turn Off the Lights for YouTube™ and Beyond by Stefan vd

The entire page will be fading to dark, so you can watch the videos as if you were in the cinema. Works for YouTube™ and Beyond.
It works for all known video sites such as YouTube, Vimeo, Twitch, Dailymotion, Facebook, Hulu, Metacafe, YouKu, etc.

Kee by Luckyrat

Kee adds free, secure and easy password management features to your browser which save time and keep your private data more secure.

Powered by KeePass Password Safe (additional installation of this free open-source program is required).
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