My Favorite Add-ons

by Hellebaard

22 Add-ons in this Collection

Adblock Plus by Wladimir Palant

Rated 5 out of 5 stars 4,963 reviews

16,054,216 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

13,412 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 199 reviews

128,873 users

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

DuckDuckGo (HTTPS / SSL) by DuckDuckGo

Rated 5 out of 5 stars 74 reviews

5,573 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

63,553 users

Dutch dictionary with wordslist from OpenTaal.

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.

ChatZilla by Gijs Kruitbosch, Robert Ginda, others

Rated 4 out of 5 stars 126 reviews

91,370 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 89 reviews

75,884 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 94 reviews

19,999 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 8 reviews

333 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

12,914 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 105 reviews

16,470 users

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

Contacts Sidebar by Jeroen Peters

Rated 4 out of 5 stars 235 reviews

16,947 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.

ThunderBirthDay by ingomueller.net

Rated 4 out of 5 stars 85 reviews

15,727 users

Display birthdays from the Thunderbird addressbooks as events in Lightning.
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