My Favorite Add-ons

by Hellebaard

25 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,824 reviews

21,632,582 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

26,918 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 64 reviews

9,984 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 175 reviews

156,445 users

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

ChatZilla by Gijs Kruitbosch, Robert Ginda, others

Rated 4 out of 5 stars 124 reviews

167,767 users

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

TinEye Reverse Image Search by TinEye

Rated 4 out of 5 stars 173 reviews

132,303 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.

Quick Locale Switcher by ppclick

Rated 4 out of 5 stars 80 reviews

230,422 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

87,289 users

Dutch dictionary with wordslist from OpenTaal.

Multi Links by Grizzly Ape

Download Now

Experimental

Rated 4 out of 5 stars 170 reviews

28,504 users

Multi Links lets you open, copy or bookmark multiple links at the same time rather than having to do them all individually.

Form History Control by Stephan Mahieu

Rated 5 out of 5 stars 70 reviews

30,598 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 270 reviews

37,899 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.

Duck Duck Go (SSL) by SSL Search Bar

Rated 5 out of 5 stars 6 reviews

657 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 4 out of 5 stars 6 reviews

10,309 users

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

Duplicate Contact Manager by Marian Steinbach, Copelnug

Rated 3 out of 5 stars 89 reviews

23,712 users

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