Add-ons

AddressBookTab by pastisman

It adds a button that can be put in toolbars and that open the addressbook in a new tab

Sender Verification Anti-Phishing Extension by Joshua Tauberer

Protects you from phishing attacks by verifying the From: address domain name of emails as you read them. Sender Policy Framework (SPF) and DNS-based reputation lists are used.

Buttons! by chuonthis

Adds buttons to the Thunderbird toolbars such as Next! and Previous! buttons for navigating through all messages instead of just unread ones. See homepage for more...

Collector's Note Neue sinnvolle Buttons Zum Benutzen: Navigationsleiste -> Rechtsklick -> Buttons einbauen, ok drücken, fertig

Unselect Message by Michael Buschbeck

Prevents Thunderbird from selecting the next message after you've deleted or moved the previously selected ones. Stay in control of which message you want to have selected and displayed in the preview pane; that piece of spam you're deleting...

Collector's Note Normalerweise kann es passieren, dass beim Löschen mehr Mails als angewählt entfernt werden. Mit diesem Addon passiert das nicht mehr, da nur noch markierte Mails gelöscht werden können.