Add-ons
Privacy and Security
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BorderColors GT
Requires Restart
How many time you sent an email from your wrong email address?
This add-ons allows you assign a different color to the compose window border for each of your email addresses. So you can immediately view from what account are you writing.
Lock The Text
Requires Restart
Encrypt your text data in browser before you submit it to a network
Silent Block
StartupMaster
PennyPost
Requires Restart
This extension makes it very easy to generate and attach stamps to outgoing mail. It also automatically detects and verifies stamps on incoming emails. The MBound algorithm requires a 16MB fixed table to work, HashCash is more CPU intense.
View Your Certificates Email Address
Adds a column for displaying the certificates Email address to the "Your Certificates" tab of the Certificate Manager
Extensor
Quick access to add-on functions from a toolbar panel: Options, (De)Activate, Details, Home page, Review page, Donation page, Uninstall, Restart application.
Automatic Export
Requires Restart
exports by an intervall or after pressing the button selected calendars in a defined folder in two modes - normal and backup...
On my homepage is the current version.
Here on this site it takes a long time after i publish a new version.
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.)
IsAdmin
Requires Restart
Shows whether the application is running with admin privileges, using an icon in the status bar; useful if logged in as an administrator and you use privilege limitation tools such as DropMyRights, RunAs or Windows User Account Control.
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.
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.
Correct Identity
Ever sent mail from the wrong email address because you forgot to select the correct identity?
Keychain Services Integration
Requires Restart
Store usernames and passwords in your Mac OS X Keychain.
Close Proxy Authentication
Requires Restart
Provides transparent proxy authentication on your enterprise network.
Close authentication dialog if login on proxy failed.
Certificate Patrol
Requires Restart
Your browser trusts many certification authorities and intermediate sub-authorities quietly, every time you enter an HTTPS web site. This add-on reveals when certificates are updated, so you can ensure it was a legitimate change.
Sensitivity Header
Requires Restart
Implement the "Sensitivity" header for outgoing messages (described in RFC 4021 section 2.1.55).
This allows the user to select Private / Personal / Company-Confidential (or none) for an outgoing message.
No longer maintained: See below.
Confirm-Address2
Requires Restart
Confirm E-mail addresses before sending mail.
This is forked from https://github.com/Meatian/confirm-address and works with Thunderbird 68.
vault56 protection
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.
Trueblock Plus
Requires Restart
Trueblock Plus is a fork of the Adblock Plus extension for blocking unwanted advertisements on the web. This fork provides the exact same features as Adblock plus, with the unpopular, unwanted "acceptable ads" (non-)feature turned off by default.
To create your own collections, you must have a Mozilla Add-ons account.
