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Spoof Detector Requires Restart

Extension for Email Spoofing Detection

Rated 2 out of 5 stars (1)
69 users

Open Addons Requires Restart

Open Add-ons window with one click.

Rated 4 out of 5 stars (25)
68 users

Lightning Multiweek View Requires Restart

Adds a multiweek view to...

Rated 2 out of 5 stars (4)
68 users

manoderecha Requires Restart

Assists to setup a chat account for manoderecha

Not yet rated
67 users

Mark Read On Reply Requires Restart

A simple extension to mark messages read after you click a reply menu or button (or Ctrl+R)

Rated 3 out of 5 stars (3)
66 users

After Unsent Mail Is Sent Requires Restart

Run a program of your choice after unsent mail has been sent.

Rated 5 out of 5 stars (1)
66 users

Dictionary for recipient

Sets the spell check dictionary based on the first recipient

Not yet rated
65 users

FlatStyle for Thunderbird Requires Restart

This gives you a style similar to MS Office XP in your Thunderbird menus and toolbars, and Calendar as well if you have that installed. It also changes the category-selector in the options window to use your system colors, instead of always being...

Rated 2 out of 5 stars (1)
65 users

World Weather Requires Restart

Display local weather information from around the...

Rated 1 out of 5 stars (2)
65 users

Lovebird Requires Restart

Email organized around the people you care about.

Rated 3 out of 5 stars (3)
63 users

DictsInfo Requires Restart

Search the highlighted text at Dicts.info.

Rated 3 out of 5 stars (4)
63 users

privateID Requires Restart

This extension displays a warning if you send a message from your private emailID to an address/ mailing list which is not found in your Personal Address Book...

Rated 3 out of 5 stars (6)
63 users

Edit HTML Source Requires Restart

You can now edit the HTML source in the Compose...

Rated 3 out of 5 stars (15)
63 users

pass-manager Requires Restart

Replace integrated password managers storage with zx2c4's pass (www.passwordstore.org)

Rated 3 out of 5 stars (1)
62 users

Shift Box Requires Restart

Replay your INBOX!

Not yet rated
62 users

PONG! Multiplayer Requires Restart

Play a game of PONG! while you are waiting.

Rated 5 out of 5 stars (7)
62 users

Check Attachment before Send Requires Restart

Confirms to send a mail with any attachment.

Not yet rated
61 users

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)
61 users

NetscapeCommunicator 4.x Account Settings Migrator Requires Restart

Provies ability to migrates account settings and preferences from NC4.x profiles.

Not yet rated
61 users

Soapy Requires Restart

Bypasses DNS-based censorship

NOTE: This was created as a SOPA protest in 2012. This does not work anymore for most sites. Use Tor instead.

Not yet rated
61 users