My Favorite Add-ons

by Hellebaard

24 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,821 reviews

18,842,778 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.

Enigmail by Patrick Brunschwig

Rated 4 out of 5 stars 192 reviews

150,193 users

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

DuckDuckGo (HTTPS / SSL) by DuckDuckGo

Rated 5 out of 5 stars 71 reviews

2,941 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!

YouTube by ditman

Rated 5 out of 5 stars 101 reviews

2,560 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!

TinEye Reverse Image Search by TinEye

Rated 4 out of 5 stars 186 reviews

104,516 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 127 reviews

123,962 users

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

Woordenboek Nederlands by fjoerfoks

Rated 3 out of 5 stars 55 reviews

72,255 users

Dutch dictionary with wordslist from OpenTaal.

Quick Locale Switcher by ppclick

Rated 3 out of 5 stars 88 reviews

157,550 users

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

Form History Control by Stephan Mahieu

Rated 5 out of 5 stars 86 reviews

24,007 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.

Duck Duck Go (SSL) by SSL Search Bar

Rated 5 out of 5 stars 6 reviews

465 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.

LanguageToolFx – Style and Grammar Checker by Gulp21

Rated 5 out of 5 stars 7 reviews

10,838 users

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

LightningButton by rsjtdrjgfuzkfg

Rated 5 out of 5 stars 14 reviews

18,416 users

Toolbar-Buttons for Lightning; advances the feature to get rid of the tabbar.

Duplicate Contact Manager by Marian Steinbach, Copelnug

Rated 3 out of 5 stars 101 reviews

21,404 users

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

Xpunge by Theodore Tegos

Rated 4 out of 5 stars 35 reviews

13,603 users

Empties the Trash and Junk folders, and compacts folders in multiple Thunderbird accounts.
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