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keepassxc-mail

MailExtension to get password from KeePassXC.

Rated 5 out of 5 stars (6)
1,073 users

FlexConfirmMail

Confirm mail address and attachments based on flexible rules.

(This project was renamed from "Flex Confirm Mail" to "FlexConfirmMail", due to a branding reason.)

Rated 4 out of 5 stars (11)
20,369 users

TORPEDO - TOoltip-poweRed Phishing Email DetectiOn

TORPEDO ist ein Tool zum Erkennen von betrügerischen Links (Phishing). Bewegen Sie die Maus über einen Link in einer Email. TORPEDO zeigt Ihnen die tatsächliche Webadresse in einem Tooltip an und hilft Ihnen, diese zu untersuchen.

Rated 5 out of 5 stars (9)
1,345 users

Allow HTML Temp

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).

Rated 4 out of 5 stars (89)
10,630 users

Identity Chooser

Identity Chooser helps you to always use the correct identity when composing a new email.

Rated 4 out of 5 stars (147)
6,218 users

FileLink provider for Send

Securely encrypt and upload large attachments to any Send service instance (formerly Firefox Send).

Rated 5 out of 5 stars (14)
41,352 users

MailHops

MailHops maps the route an email took to get to you. Displaying the senders location, weather, user-agent and authentication used.

Rated 4 out of 5 stars (37)
2,544 users

Correct Identity

Ever sent mail from the wrong email address because you forgot to select the correct identity?

Rated 4 out of 5 stars (119)
2,179 users

Enigmail

Helper tool to migrate your keys and important settings from Enigmail to Thunderbird 78.

Rated 4 out of 5 stars (260)
4,878 users

Auto Address Cleaner T

Remove comment, display name from addresses before sending mail.

This add-on is a fork of Auto Address Cleaner.
https://addons.thunderbird.net/thunderbird/addon/auto-address-cleaner/

Rated 5 out of 5 stars (8)
9,669 users

Mail Merge

Create and Save or Send Multiple Individual and Personalized Messages from a Draft

Rated 5 out of 5 stars (225)
65,849 users

SecondOpinion Requires Restart

This extension implements a convenient way to check and upload attachments against VirusTotal.com

Rated 4 out of 5 stars (2)
0 users

MailSentry IronPort Spam Reporter Requires Restart

Report spam and ham to IronPort - originally written for our MailSentry hosted IronPort customers, it can be used by anyone who has their email filtered by an IronPort appliance.

Rated 5 out of 5 stars (2)
6 users

SmartProxy

SmartProxy is a smart automatic proxy switcher that will automatically enable/disable proxy for the sites you visit, based on customizable rules.

Rated 2 out of 5 stars (3)
204 users

CookieKeeper

Extended Cookie Manager - Keep only wanted cookies.

Rated 4 out of 5 stars (80)
29 users

Encrypt if possible Requires Restart

Sets message security option "encrypt message", if valid X509 certificates are found for all recipients.

Rated 5 out of 5 stars (23)
310 users

Get before Send Requires Restart

Get messages for the account which is bound to the identity then send the message when you click the toolbar button or the menu item. If your SMTP sever authenticates using POP(IMAP) before SMTP, the extension is useful.

Rated 5 out of 5 stars (2)
5 users

Autocrypt Requires Restart

E-Mail encryption that gets out of your way. Compatible with Autocrypt and OpenPGP.

EARLY ACCESS, MAY CONTAIN BUGS!

Caution: This extension can not be used together with Enigmail. Please remove Enigmail before installing.

Rated 4 out of 5 stars (10)
4 users

TorBirdy Requires Restart

This extension configures Thunderbird to make connections over the Tor anonymity network.

Rated 3 out of 5 stars (17)
19 users

GuifiProxy Requires Restart

Simple proxy manager
- Change proxy with two clicks
- Import and export proxies lists
- Manually add, delete and edit proxies
- Automatic authentication on proxies (bypass popup with login and password)
- Proxysel replacement

Rated 4 out of 5 stars (20)
0 users