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AutoConfiguration Hook
Requires Restart
Provides ability to create E-mail accounts for specific ISP via the account creation wizard.
ConQuery
Requires Restart
Context searching for everyone and URL manipulation tool for advanced users...
DOM Inspector Plus! [dm]
Requires Restart
Improved DOM Inspector! [dm version]. Box Model new layout & more data, see screenshot!. Horizontal scroll for Dom-Tree, and some more.
Inspects the structure and properties of a window and its contents.
SubSwitch
Simplify email categorization - it will be easier for you and others to manage mail. Define the set of prefixes for all emails you send or let SubSwitch to autodiscover it. While writing insert prefix to the title - choose one from your set.
TryAgain
Requires Restart
TryAgain keeps trying to load a webpage when the server cannot be reached.
AutoUp
Mark All Read Button
Requires Restart
Adds toolbar buttons to Mark All emails as Read, Mark Thread as Read, and Goto Next Unread Thread.
Paranoia
Check if your emails arrived TLS-encrypted (and which corporations were able to read it nevertheless)
QuoteCollapse
Requires Restart
Collapse and expand quotes.
Contributors: Stanimir Stamenkov, Dillinger
Show Calendar Week
Requires Restart
Shows the calendar week Thunderbird/Lightning calendar's moth and multi-week view.
Yet Another Remove It Permanently
Requires Restart
Remove elements and block content on Web pages.
Zoiper Thunderbird Plugin
Requires Restart
It allows you to make calls via Zoiper from Mozilla Thunderbird.
QFO - Quick Fuck Off
Requires Restart
This extension serves the purpose of providing instant access to the FOAAS web service. FOAAS (Fuck Off As A Service) provides a modern, RESTful, scalable solution to the common problem of telling people to fuck off.
Show Address Only
Requires Restart
Adds columns to display Sender/Recipients mailaddress only.
Feedly Synchronizer
BorderColors GT
Requires Restart
How many time you sent an email from your wrong email address?
This add-ons allows you assign a different color to the compose window border for each of your email addresses. So you can immediately view from what account are you writing.
AttachExtraTools
Requires Restart
This extension gives more options and tools to attach files from compose window.
HTitle (discontinued)
Requires Restart
Hide title bar if window is maximized.
This add-on has been discontinued!
Legacy extensions support will be dropped in Firefox 57. If you interest in CSD on Linux, please track progress on https://bugzilla.mozilla.org/show_bug.cgi?id=1283299.
Extra Folder Columns
Requires Restart
This extension is for those TB3 users who want the multiple-columns view that TB2 allowed
IMPORTANT: If you are using Thunderbird 38 or later, uninstall this addon. The functionality is in core now.
To create your own collections, you must have a Mozilla Add-ons account.
