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Thunderbird Conversations Featured

This addon provides a conversation view for Thunderbird, grouping messages together and allowing you to reply "inline" thus providing a more efficient workflow.

Rated 4 out of 5 stars (551)
26,778 users

QuickFolders (Tabbed Folders)

The "Swiss army knife" of folders. Turn your favorites into tabs - open folders and subfolders, move mails without scrolling around or searching. powerful + easy.

See new mail at a glance after automatic filtering - supports quickFilters addon!

Rated 5 out of 5 stars (187)
15,019 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)
10,382 users

Edit Email Subject (EES)

This module allows you to change/edit email subjects

Rated 4 out of 5 stars (122)
7,957 users

ReFwdFormatter

Remove the ">" prefix from quote when you make a reply.

[Source code] https://github.com/isshiki/ReFwdFormatter

Rated 4 out of 5 stars (15)
2,204 users

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)
734 users

QuickArchiver

Get things done and clean up your inbox! When you move an e-mail the first time, QuickArchiver remembers the destination folder and lets you move more e-mails with a single click. You can apply rules by sender, recipient, and subject.

Rated 4 out of 5 stars (31)
1,093 users

Copy Sent to Current

Allows to place a copy of sent messages (aka FCC) into the currently active folder or any other folder you choose, when you create the message. Usually the copies are placed into the 'Sent' folder. For replies, you may also move the original message.

Rated 4 out of 5 stars (103)
1,762 users

Rspamd-spamness

Rspamd spam filtering system score visualization.

Rated 4 out of 5 stars (8)
980 users

Filter Button

Allows to add a button to the message header view toolbar that shows all filters that match the selected message, including manual and disabled filters. A click on the button allows to select a filter to run.

Rated 4 out of 5 stars (25)
780 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 (39)
2,490 users

New Tab Button

It provide you the following functionalities:
* Open a selected message in a tab by a toolbar button
* Open a message in a tab by double-clicking its header view (disabled by default)
* Hide Lightning's Today Pane on opening a tab

Rated 4 out of 5 stars (9)
897 users

ToggleReplied

Enables toggling of replied and forwarded states of messages.

Rated 5 out of 5 stars (7)
284 users

Show InOut

Adds some columns to the tableview. One shows an indicator wether a mail is incoming or outgoing, other shows the sender, the recipient(s) or the correspondent(s). Columns can be shown as name only, address only or both.

Rated 5 out of 5 stars (40)
363 users

Phoenity Buttons

Adds some toolbar buttons using phoenity icons.

Rated 4 out of 5 stars (16)
4,441 users

mailmindr

Follow up for Thunderbird E-Mails.

Web: https://mailmindr.net/
Twitter: @mailmindr

Rated 4 out of 5 stars (76)
3,158 users

Colored Diffs

Color diffs sent by SVN/CVS/GIT/Mercurial...

Rated 4 out of 5 stars (20)
552 users

Toggle Quotes (Collapse Quotes)

Adds a Toggle Quotes button, allows to collapse quotes.

Rated 4 out of 5 stars (1)
151 users

Toggle Headers

Allows to switch between the normal header view and viewing all headers when viewing a message by using a keyboard shortcut (Ctrl+H).

Rated 4 out of 5 stars (12)
1,292 users

Received

Displays the "Received" header parsed with a regular expression.

Rated 5 out of 5 stars (4)
151 users