My Favorite Add-ons

by Hellebaard

24 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,930 reviews

19,979,797 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).

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.

YouTube by ditman

Rated 5 out of 5 stars 95 reviews

18,965 weekly downloads

This add-on will add an improved version of YouTube's search engine, now with search suggestions!

Thanks all who voted for helping this add-on to become public! Please keep leaving feedback!

DuckDuckGo (HTTPS / SSL) by DuckDuckGo

Rated 5 out of 5 stars 66 reviews

5,757 weekly downloads

DuckDuckGo is the search engine that doesn't track you. We also have smarter answers and less clutter. This extension adds DuckDuckGo (HTTPS / SSL version) to the search bar. For more features, see the DuckDuckGo Plus add-on. Enjoy!

Enigmail by Patrick Brunschwig

Rated 4 out of 5 stars 179 reviews

144,832 users

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

TinEye Reverse Image Search by TinEye

Rated 4 out of 5 stars 179 reviews

116,435 users

TinEye is a reverse image search engine. The plugin adds a context menu item that allows you to search for an image to find out where it came from, how it is being used, if modified versions of the image exist, or to find higher resolution versions.

ChatZilla by Gijs Kruitbosch, Robert Ginda, others

Rated 4 out of 5 stars 125 reviews

144,829 users

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

Quick Locale Switcher by ppclick

Rated 3 out of 5 stars 82 reviews

152,834 users

Allows you to quickly switch to a different language (User Interface, Spell Checker Dictionary and Website content) in your Mozilla application.

Woordenboek Nederlands by fjoerfoks

Rated 3 out of 5 stars 55 reviews

79,172 users

Dutch dictionary with wordslist from OpenTaal.

Form History Control by Stephan Mahieu

Rated 5 out of 5 stars 77 reviews

26,901 users

Manage form history entries (search, edit, cleanup, export/import) and easy text formfiller.

Auto-save text entered in any form while typing to allow fast recovery when disaster strikes.

Control for which webpage form history is saved or not.

Contacts Sidebar by Jeroen Peters

Rated 4 out of 5 stars 272 reviews

32,727 users

Displays the address books in a sidebar in Thunderbirds 3-pane-window and can be toggled with the F4 key or a toolbar button.

Visit my Contacts Sidebar site for recent versions and news.

LanguageToolFx – Style and Grammar Checker by Gulp21

Rated 4 out of 5 stars 7 reviews

9,537 users

Check selected text on websites or text in text fields with the free style and grammar checker LanguageTool.

Duck Duck Go (SSL) by SSL Search Bar

Rated 5 out of 5 stars 6 reviews

362 weekly downloads

Duck Duck Go is a search engine that does not collect or share personally identifiable information. This search bar add-on utilizes SSL to protect searches between You and Duck Duck Go.

Duplicate Contact Manager by Marian Steinbach, Copelnug

Rated 3 out of 5 stars 95 reviews

21,172 users

Facilitates handling of duplicates in your address book(s). Allow to search and remove similar contacts.

Beef Taco (Targeted Advertising Cookie Opt-Out) by jmhobbs

Rated 4 out of 5 stars 78 reviews

15,156 users

Sets permanent opt-out cookies to stop behavioral advertising for 100+ different advertising networks, including Google, Yahoo, Microsoft, all members of the Network Advertising Initiative, and many other companies.
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