Top-Rated Extensions

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Bring to OneNote Requires Restart

Send text and images to Microsoft Office OneNote from firefox. With section dialog, we can select an OneNote section to store page with title. This add-on must work with "Bring to OneNote" application.

Rated 2 out of 5 stars (9)
1,143 users

Log Helper Requires Restart

This is a basic utility to manage logging from within the application, for help with debugging.

Rated 3 out of 5 stars (2)
159 users

CrowdMailer Requires Restart

Find email addresses in unformated text and create a mail with them. Use it to easily create mails with many recipients and/or to extract addresses out of formats like: "Sherlock Holmes (s.holmes@hotmail.com)"

Rated 3 out of 5 stars (2)
156 users

A Better S/MIME GUI Requires Restart

Provides a better S/MIME GUI for Thunderbird.

Rated 3 out of 5 stars (2)
2 users

Readonly Attachments Requires Restart

Saves temporary files as read-only when showing attachments.

Rated 3 out of 5 stars (2)
0 users

Message Level Authentication Requires Restart

Authenticates mail from Message Level Network users, Mail Reputation provided by Sender Score for each message and Anti-Phishing Data from PhishTank. Registration is FREE but not required...

Rated 2 out of 5 stars (13)
0 users

pkrss Requires Restart

pkrss is one rss tools, it embed http://www.pk17s.cn.
contact with google rss feed,join in multi lanauage support,if default panel has no feed,your can search some feed by keyword in topbar.

Rated 2 out of 5 stars (4)
22 users

RemindMeBot-Reddit Compatible with Firefox 57+

All the great features of /u/RemindMeBot in a quick and easy to use extension!

Rated 2 out of 5 stars (3)
96 users

No Ads!

NO ADS on your favorite Web-sites!
Ваши любимые сайты без рекламы!

Rated 2 out of 5 stars (3)
401 users

CodeHighlight Requires Restart

highlight code in email.

Rated 3 out of 5 stars (1)
55 users

IMAP Draft Unread Requires Restart

This is a Thunderbird addon that lets you customize the behavior of the IMAP draft unread messages. No more new mail notifications for your drafts!!

Rated 3 out of 5 stars (1)
327 users

DivFind

Search in all your search engines at the same time

Rated 3 out of 5 stars (1)
11 users

StickyCharset Requires Restart

Allows persistent charset changes on individual messages. For use with messages that have erroneous charset header...

Rated 3 out of 5 stars (1)
1 user

WebChanges Requires Restart

Monitor website changes for all websites not providing feeds.

Rated 3 out of 5 stars (1)
10 users

Flex Confirm Mail Requires Restart

Confirm mail address and attachments based on flexible rules.

Rated 3 out of 5 stars (2)
9,735 users

Redmine連携 Requires Restart

コンテキストメニューでRedmineチケットを作成します

Rated 3 out of 5 stars (2)
112 users

Nokia Synchronization Requires Restart

Synchronize Thunderbird and Nokia phone...

Rated 2 out of 5 stars (43)
3 users

Periodic Memory Usage Dumper

Saves memory usage information periodically (mainly for troubleshooting), for web/addon developers.

Rated 3 out of 5 stars (1)
93 users

Bitmask Thunderbird Extension Requires Restart

After installing the extension, do the following:

1. Make sure that Bitmask is running and you are logged in.
2. In Thunderbird, click the main menu, then "Preferences" - "Account Settings".
3. Click "Account Actions" - "New Bitmask Account...".

Rated 3 out of 5 stars (1)
185 users

Sieve Out of Office New Requires Restart

A Thunderbird plugin to allow one to set out of office messages and / or redirect emails to colleagues via a easy to use pop-up dialog.

This Out of Office plugin requires that your POP3 / IMAP server also have a sieve service.

Rated 3 out of 5 stars (1)
354 users