Add-ons
Privacy and Security
-
DKIM Verifier
Verifies the DKIM-Signature of an e-mail.
16,041 users
Most Popular See all »
-
Create and Save or Send Multiple Individual and Personalized Messages from a Draft67,733 users -
Securely encrypt and upload large attachments to any Send service instance (formerly Firefox Send).36,020 users -
Check the message contents and addresses before you send the message...20,361 users -
Confirm mail address and attachments based on flexible rules.
(This project was renamed from "Flex Confirm Mail" to "FlexConfirmMail", due to a branding reason.)16,681 users
Top Rated See all »
-
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/8,694 users -
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.5,779 users -
Adds the ability to create and edit entries in the password manager.258 users -
Adds optional columns to the Thread Pane to allow sorting email messages by:
* Full sender address -- e.g. "someone@example.com"
* Sender's domain -- e.g. "example.com"
* Sender's local part -- e.g. "someone"
* Sender's TLD -- e.g. ".com"6 users -
Create and Save or Send Multiple Individual and Personalized Messages from a Draft67,733 users
Recently Added See all »
-
vault56 protection protects against potentially malicious attached files and links. Links are rewritten to pass through vault56 URL protection servers and checked for trackers and malicious activity.24 users -
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.5,779 users
-
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.204 users -
New Bing isn't just for Edge anymore. Anywhere you want42 users -
Encrypt any file, any text, and share via any medium, any time31 users
See all 175 extensions in Privacy and Security »
To create your own collections, you must have a Mozilla Add-ons account.
