My Favorite Add-ons

by Hellebaard

22 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 5,134 reviews

17,420,983 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 104 reviews

13,927 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!

Enigmail by Patrick Brunschwig

Rated 4 out of 5 stars 191 reviews

163,469 users

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

DuckDuckGo (HTTPS / SSL) by DuckDuckGo

Rated 5 out of 5 stars 75 reviews

4,701 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!

Woordenboek Nederlands by fjoerfoks

Rated 3 out of 5 stars 60 reviews

80,581 users

Dutch dictionary with wordslist from OpenTaal.

ChatZilla by Gijs Kruitbosch, Robert Ginda, others

Rated 4 out of 5 stars 126 reviews

102,539 users

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

TinEye Reverse Image Search by TinEye

TinEye is a reverse image search engine. The extension adds a context menu item so you can 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 3 out of 5 stars 89 reviews

199,797 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 93 reviews

23,720 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.

Duplicate Contact Manager by Marian Steinbach, Copelnug

Rated 3 out of 5 stars 103 reviews

22,568 users

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

Duck Duck Go (SSL) by SSL Search Bar

Rated 5 out of 5 stars 8 reviews

216 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.

LightningButton by rsjtdrjgfuzkfg

Rated 5 out of 5 stars 14 reviews

18,284 users

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

Contacts Sidebar by Jeroen Peters

Rated 4 out of 5 stars 236 reviews

27,930 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.

Identity Chooser by speedball2001

Rated 5 out of 5 stars 89 reviews

9,350 users

Identity Chooser helps you to always use the correct identity when composing a new email.
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