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Sender Address Columns Requires Restart

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"

Rated 5 out of 5 stars (3)
147 users

Sender Frequency Requires Restart

Adds a custom column for Sender Frequency to the thread pane

Rated 4 out of 5 stars (3)
70 users

Sender Name Requires Restart

Rated 4 out of 5 stars (40)
2,223 users

Sender Verification Anti-Phishing Extension Requires Restart

Protects you from phishing attacks by verifying the From: address domain name of emails as you read them. Sender Policy Framework (SPF) and DNS-based reputation lists are used.

Rated 4 out of 5 stars (20)
798 users

SenderFace Requires Restart

SenderFace enables you to associate images (faces) with Email senders (from...

Rated 3 out of 5 stars (10)
94 users

SendTools Requires Restart

Add SendAt option to the compose window to allow sending a message on a particular date and...

Rated 3 out of 5 stars (25)
110 users

SendToSecondEmail Requires Restart

This Extension lets you send Mails to both, first and second email address...

Rated 5 out of 5 stars (1)
26 users

SendVia Requires Restart

Sometimes you need to select a specific SMTP server for sending the current message? Then SendVia is for you.

SendVia provides the `Send' button of message composition windows with a drop-down menu from which you can select or create the SMTP server...

Rated 4 out of 5 stars (12)
197 users

SendWithoutSubject Requires Restart

Send without subject and without confirmation alert

Rated 3 out of 5 stars (11)
262 users

Sensitive Attachment Guard Requires Restart

A Thunderbird add-on censor sensitive attachments (currently Microsoft Office documents) from being sent to unintended recipients.

Not yet rated
1 user

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.

Rated 4 out of 5 stars (1)
45 users

Sensitivity Header + SPX Requires Restart

Implement the "Sensitivity" header for outgoing messages (described in RFC 4021 section 2.1.55).
Forked from another add-on developed by ff_bob, added SPX header for Sophos security appliances

Not yet rated
11 users

Sent-By-User column Requires Restart

Adds a new column in message list-view, that will display the name of the user who sent the mail (read from a message header).
Manual configuration required. ONLY FOR THUNDERBIRD.

Rated 5 out of 5 stars (1)
34 users

sepsis-console Requires Restart

A general-purpose JavaScript console for all Mozilla toolkit applications.

Not yet rated
4 users

sepsis-console (Deprecated) Requires Restart

THIS VERSION IS DEPRECATED. Use https://addons.mozilla.org/en-US/developers/addon/sepsis-console instead. See the description below.

sepsis-console is a general-purpose JavaScript console for all Mozilla toolkit applications.

Not yet rated
2 users

Serial Letter Requires Restart

Provides the ability to start writing a template-derived letter directly from within the address book. Supports also multiple recipients. Supports only TeX and similar systems at the moment.

Not yet rated
84 users

Set Default Columns Requires Restart

Provides ability to set default visibility of columns in the thread pane.

Rated 1 out of 5 stars (1)
62 users

setenv

Automatically set environment variables based on preferences.

Not yet rated
1 user

Seturgent Requires Restart

Sets the urgent flag (X11) of the Thunderbird window under Linux in case of new messages. Does ignore special folders like Drafts, Junk and such.

Rated 5 out of 5 stars (2)
48 users

Shedule Filters Requires Restart

Sheduled run message filters

Запуск фильтров сообщений по расписанию

Not yet rated
50 users