Privacy and Security

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Identity Selector

Always select the right identity with Identity Selector!

Rated 4 out of 5 stars (3)
38 users
Updated July 11, 2024

Paranoia

Check if your emails arrived TLS-encrypted (and which corporations were able to read it nevertheless)

Rated 4 out of 5 stars (16)
731 users
Updated July 1, 2024

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 (10)
1,737 users
Updated June 7, 2024

Identity Chooser

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

Rated 4 out of 5 stars (149)
5,984 users
Updated May 14, 2024

Safelinks Cleanup

Cleans up Outlook’s “safelinks” tracking.

Minimal code to allow for easy auditing of the add-on. The only code is:
https://github.com/Cimbali/safelinks-cleanup/blob/main/src/background.js

Not yet rated
59 users
Updated Dec. 31, 2023

Just Verify It

Just Verify It is a Thunderbird add-on that automates the scanning of email attachments with VirusTotal for malware. With over 50 antivirus engines, it provides reliable and quick results, ensuring the safety of your digital assets.

Rated 5 out of 5 stars (5)
660 users
Updated Sept. 17, 2023

Cypherdog Encryption

Encrypt any file, any text, and share via any medium, any time

Not yet rated
31 users
Updated May 4, 2023

uBlock Origin

Finally, an efficient blocker. Easy on CPU and memory. uBlock Origin (uBO) is a CPU and memory-efficient wide-spectrum content blocker that blocks ads, trackers, coin miners, popups, annoying anti-blockers, etc. in your feeds.

Rated 4 out of 5 stars (12)
9,528 users
Updated April 28, 2023

New Bing Anywhere

New Bing isn't just for Edge anymore. Anywhere you want

Rated 2 out of 5 stars (2)
19 users
Updated April 12, 2023

Arcus

Modern encryption in Thunderbird - powered by Rust, rage and WebAssembly

Rated 5 out of 5 stars (2)
16 users
Updated Feb. 15, 2023

PGP Universal

Fixes encrypted e-mail attachment names from PGP Universal servers

Not yet rated
5 users
Updated Sept. 22, 2022

EagleCloud Extension

Works along with EagleCloud Information Security product to secure sensitive information based on company policy.

Not yet rated
3 users
Updated Aug. 9, 2022

acus

Update 2023: This addon will be replaced by "arcus".

Modern encryption in Thunderbird

** Currently in testing phase **
What you can do:
1. Set your secret key and automatically decrypt emails
2. Generate a new key pair
3. Encrypt plain text

Not yet rated
2 users
Updated May 14, 2022

Zivver for Thunderbird

This extension automatically detects Zivver messages and decrypts them on-the-fly using the Zivver API. Messages are decrypted only when actively displayed by the user and are never stored locally.

Not yet rated
10 users
Updated April 4, 2022

ReplyAsOriginalRecipientUp

When you reply to a mail sent to your personalized address (postfix/qmail/gmail extensions) such as john.doe+contactname@example.com, "From:" is replaced by your personalized address rather than your simple address.

Rated 4 out of 5 stars (13)
700 users
Updated Nov. 24, 2021

Enigmail

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

Rated 4 out of 5 stars (260)
3,562 users
Updated Aug. 27, 2021

Safelink removal

Replace URLs which have been rewritten by Office 365 Advanced Threat Protection with the original URL.

Rated 5 out of 5 stars (2)
159 users
Updated May 18, 2021

Changelogger

Gets changelogs for updated addons

Not yet rated
453 users
Updated April 24, 2021

Confirm-Address

Confirm E-mail address before sending mail

Rated 4 out of 5 stars (75)
19,335 users
Updated April 14, 2021

Unmangle Microsoft ATP Safelinks

Users of outlook.com and o365 who have Advanced Thread Protection enabled will have all URL's in emails changed to redirect them to an Microsoft filter before opening. This is a bad idea.

This plugin will change the URL back to the original value.

Rated 5 out of 5 stars (6)
735 users
Updated Jan. 11, 2021