Add-ons
Miscellaneous
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UnMHT
UnMHT allows you to view MHT (MHTML) web archive format files, and save complete web pages, including text and graphics, into a single MHT file in Firefox/SeaMonkey.
Unread Count
Requires Restart
Maintains a file in the profile root directory with counts for unread messages per account. Useful for display in generic status bar, e.g.: taffybar, xmobar, dzen2, etc
Unsubscribe
Update Notifier
Requires Restart
Note from Mozilla: This add-on has been discontinued. Try Add-on Update Checker instead.
Notifies you when updates are available for your extensions and themes.
URL Link
URL Link is a small Thunderbird extension that allows you to select a non-URL in a mail/news message or web-page, and open it in a browser window.
URLFilter
Use Bcc Instead
Requires Restart
Sorry but this addon is no longer supported in TB 60. See below.
Who among us has not made the mistake of sending a 'broadcast' email to a large number of recipients without using BCC; thereby revealing everyone's email addresses to all?
Version in Add-on bar
Requires Restart
Show the Firefox/Thunderbird version number in the addon bar (formerly called status bar).
VKeyBoard
Requires Restart
Virtual keyboard for firefox and the Kiosk Browser. Adds a keyboard to the bottom of the window. Great for use with touchscreens or in a kiosk environment
WebApp Tabs
Allows you to configure a set of WebApps to open easily as tabs within Thunderbird trying to give them all the functionality that you'd find in Firefox.
WebDAV for Filelink
Requires Restart
Adds the possibility to use a WebDAV store for Filelink. With this extension you can link attachments to a WebDAV service, for example as provided by Apache's mod_dav or some public services.
Wepware - Capture and Share Live Content
Requires Restart
Grab live snapshots of anything on the internet, organize your collected content into folders and share with friends through SNS.
whatmon
Requires Restart
Monitor Whatever: a tiny Firefox extension called whatmon, which can monitor almost anything you wish to monitor. Number of logged on users? Current load average? Health of your LDAP servers? Mail server queues? No problem for...
Whatsapp - Quick Access
Quick Access to Whatsapp Web in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
White Screen
Use white screen test to detect dead pixels, stuck pixels, and other display defects.
withAttach
Requires Restart
This extension adds a menu option (and a toolbar button) to compose an email "with attachments"...
Workspace for Thunderbird
Requires Restart
A simple editor for executing snippets of JS. In Thunderbird.
World Weather+
XL2Report
Requires Restart
Report und grafische Auswertung für Messungen mit dem XL2-Audio und Akustik Analyzer von NTi Audio
To create your own collections, you must have a Mozilla Add-ons account.
