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A new Thunderbird address book based on the CardDAV and vCard standards.
You can change icon display and button order. You can also hide unnecessary buttons.
Allows to have HTML temporarily enabled (and displayed) in the currently selected message by only one click. When switching to another message, it'll be shown automatically again in plain text or simple html mode (according to your settings).
Display Mail User Agent T Suositeltu
Displays the mail program with which the selected mail was written
*This addon is compatible with Thunderbird after Web Extesnsions support. Since development and operation check are done on Daily, it may not work on normal Thunderbird.
OpenPGP message encryption and authentication for Thunderbird.
Check that number of non-BCC recipients does not exceed a parameter.
No Message Pane Sort prevents accidental resorting of the message pane by disabling mouse button clicks on the column headers, thus, locking the sorting order of your emails.
It is still possible to sort messages by ctrl-clicking the header.
V 62.0 is available with Tb v78, 79 now as of 2020-09-22.
Enjoy white without eye fatigue!
FrameWhite is applicable/available in Dark theme!
Black or White was realized.
send a gift to a friend Eunjo.
Adds an 'expand lists' button to the compose window. It replaces all mailing lists with their contacts.
This extension adds support for CalDAV & CardDAV accounts to the Thunderbird Sync manager "TbSync". Including iCloud, Google, ownCloud, Nextcloud, Radicale and many more.
Adds a full sender and recipient e-mail column to message list panel.
Identity Chooser helps you to always use the correct identity when composing a new email.
This Addon is needed to sync your Android based smartphone with Thunderbird with the Software "MyPhoneExplorer"
Shows a colorful border around the "New Message" window, so you can tell different identities apart.
Builds on the original BorderColors and the "GT" version, adding different border styles.
Disables selection of the next message when deleting.
A quick port of squib's "Deselect on Delete" for thundebird 78.
Transfer Immunity is a fast and secure add-on and SaaS service for sharing and transferring files. This high-fidelity, SaaS-based platform allows users to send large files to different destinations as attachments with emails.
Google Keep for Thunderbird
Attempt to migrate XNote++ to Thunderbird 78+
Strike the 'T' key to sort messages by thread, strike the 'U' key to sort them unthreaded again, just like the 'G' key switches to Grouped By Sort view.
Removes duplicate messages