Most Popular Extensions
Thunderbird Pedophile Reporter Requires Restart
This add-on was created to allow anyone that is contacted by a suspected pedophile or suspected predator. This will gather the header information and send it to our servers to be reviewed by an investigator.
Bulk List Filter Requires Restart
The Bulk List filter addon provides a set of preconfigured search folders for popular services such as Facebook, eBay, Amazon and more.
This addon provides options for starting the developer tools server. It is especially valuable in XULRunner Apps where there is no UI to start the server.
NOTE: This addon is not mandatory in Firefox or Thunderbird, as support is built in.
Google Mail Tab for Thunderbird Requires Restart
Open Google Mail in a new tab inside of Mozilla Thunderbird
GQueues Tab Requires Restart
This extension uses the new special tab features of Thunderbird 3 to open the GQueues to-do list manager inside a Thunderbird tab.
Thunderbird Are Go Requires Restart
This plays audio to boost emotion when Mozilla Thunderbird start up.
Mozilla Thunderbird Are Go!
InGmane Requires Restart
Try to open a given message in Gmane.
Event-to-task conversion activator Requires Restart
Activates the Event-Task conversion ability...
Sensitivity Header + SPX Requires Restart
Implement the "Sensitivity" header for outgoing messages (described in RFC 4021 section 2.1.55).
Forked from another add-on developed by ff_bob, added SPX header for Sophos security appliances
NirvanaHQ Requires Restart
NirvanaHQ for Thunderbird
Viadeo Tab Requires Restart
Cette extension ajoute le réseau social français, Viadeo, un bouton d'accès à ouverture simple et rapide dans Thunderbird.
D'autres médias sociaux sont disponibles également.
thundertoe Requires Restart
quote forwarded message just as replying
ComposeRTF Requires Restart
Compose messages Right-to-Left or Left-to-Right. Unlike other addons which change the direction of typing of the whole message, this addon allows you to control the direction of an individual paragraph.
about:kittens Requires Restart
Baby cats and kittens in the about box...
ThunderBird Ticker Requires Restart
Extension for creating support tickets based on mail.
Dissociate Occurrence Requires Restart
This add-on provides an extra menu item, labeled 'Dissociate Occurrence', to events' context menu, which allows an occurrence of a recurring event to be dissociated from the rest of the recurring series.
Year View Requires Restart
This is an example extension that adds a simple year view to Sunbird/Lightning.
Note that freebusy information is only provided if all calendars are cached. See long description for more info. Also, Calendar 1.0pre with bug 489590 fixed is required.