Thunder KnottyDreadBr

by KnottyDreadBr

32 Add-ons in this Collection

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.

Provider for Google Calendar by Philipp Kewisch

Rated 4 out of 5 stars 1,029 reviews

315,958 users

Allows bidirectional access to Google Calendar

Quicktext by WizKid

Rated 4 out of 5 stars 319 reviews

64,649 users

Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.

Signature Switch by Achim Seufert

Rated 4 out of 5 stars 177 reviews

75,020 users

Switch the signature on/off or choose a new one from your predefined set...

Thunderbird Conversations by Jonathan Protzenko

Rated 4 out of 5 stars 409 reviews

61,183 users

This addon provides a conversation view for Thunderbird, grouping messages together and allowing you to reply "inline" thus providing a more efficient workflow.

The latest version is compatible with Thunderbird 38+ only (see below for details).

Brazilian Portuguese Dictionary (New Spelling) by jhultmann

Rated 4 out of 5 stars 24 reviews

43,952 users

The same spellchecker shipped with the Brazilian version of Firefox.

Quick Locale Switcher by ppclick

Rated 3 out of 5 stars 87 reviews

152,644 users

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

FireTray by Foudil, Francesco S., others

A system tray extension for Linux and Windows, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...

Remove Duplicate Messages (Alternate) by eyalroz

Rated 4 out of 5 stars 145 reviews

59,224 users

Search and remove messages which are the same as other messages in your mail folders (referred to as duplicates or dupes).

Google Contacts by H.Ogi

Rated 3 out of 5 stars 313 reviews

44,385 users

Access to Google contacts and synchronize them with Thunderbird address books.

Zindus by Leni Mayo

Rated 4 out of 5 stars 207 reviews

26,717 users

Google and Zimbra contact sync for Thunderbird. (TB 24 and above NOT supported)

Expression Search / GMailUI by wang opera

Rated 4 out of 5 stars 73 reviews

7,285 users

Powerful message searching through expressions. Type "from:fred to:tom" to see all messages from Fred to Tom in the current view. Support 'regular expressions' and 'click to search'.

ThunderBrowse by GS! Networks

Rated 3 out of 5 stars 159 reviews

22,654 users

Did your friend send you a cool link? Want to read the rest of that interesting article? Don't want to open up your web browser just to view it? You don't have to! Just view it in Thunderbird with ThunderBrowse!

Display Mail User Agent by Jürgen Ernst

Displays icon for user agent of received mails.

Gmail email Signature - WiseStamp by The WiseStamp Team

Rated 4 out of 5 stars 301 reviews

27,139 users

Signatures for Gmail, Google Mail, Yahoo Mail
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