Alex Seif ThunderBird

by alexseif

12 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.

ReminderFox by Tom Mutdosch, Daniel Lee

Rated 4 out of 5 stars 490 reviews

47,556 users

ReminderFox displays and manages lists of reminders and ToDo's. ReminderFox makes sure you remember all of your important dates via easy-to-use lists, alerts, and alarms, right in your browser without the need for a separate calendar program.

Send Later by Jonathan Kamens

Rated 5 out of 5 stars 91 reviews

52,856 users

True "Send Later" functionality to schedule the time for sending an email.

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 ...

CompactHeader by jmozmoz

Rated 5 out of 5 stars 162 reviews

89,948 users

Add symbol in header plane to switch between compact and expanded view. Options to switch between one or two lines compact view, which buttons should be displayed in header pane. For Thunderbird 36 and older use version 2.0.9 (see version history)

Quicktext by WizKid, R Kent James

Rated 4 out of 5 stars 293 reviews

75,365 users

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

Thunderbird Conversations by Jonathan Protzenko

Rated 4 out of 5 stars 412 reviews

26,468 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).

Google Contacts by H.Ogi

Rated 3 out of 5 stars 316 reviews

526 users

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

Markdown Here by Adam Pritchard

Rated 5 out of 5 stars 29 reviews

4,843 users

Write your email in Markdown, then make it pretty. NOTE: This is the legacy XUL version, for Thunderbird, Postbox, Pale Moon, etc. *Not* for modern Firefox; for that use this: https://addons.mozilla.org/en-US/firefox/addon/markdown-here/

Display Quota by Arnaud Abelard

Rated 4 out of 5 stars 30 reviews

24,806 users

This extension will display the current status of your IMAP quota in thunderbird's statusbar and will warn you when you reach a configurable limit...

Mail Summaries by squib

Rated 5 out of 5 stars 38 reviews

4,049 users

Adds a summary of mail accounts and folders to replace the account central pane and the empty folder preview

Personal Level Indicators by Tammo van Lessen

Rated 4 out of 5 stars 11 reviews

1,860 users

Shows an indicator so you can tell if an email was addressed only to you (»), a group (›), or a mailing list.

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