Top-Rated Extensions

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Locale2MUI Requires Restart

Sets Firefox/Thunderbird Locale to Windows (MUI) Language on startup

Rated 1 out of 5 stars (1)
272 users

Mailopen Requires Restart

Open an email file from the commandline

Rated 1 out of 5 stars (1)
17 users

ToggleFullHeaders Requires Restart

Allows you to customise the message panel buttons to add a "Toggle Headers" button that will switch between showing and hiding the full headers.

Rated 1 out of 5 stars (1)
90 users

Mukparasi Requires Restart

A Korean popup dictionary based on Rikaichan
Requires the additional dictionary addon.

Rated 1 out of 5 stars (1)
15 users

Disable about:config Requires Restart

Disable about:config feature of Firefox and Thunderbird.

Rated 1 out of 5 stars (1)
860 users

Disable Add-on Compatibility Checks (Version 40+)

Reinstates the extensions.checkCompatibility preference.

Not yet rated
115 users

Image Zoom (ugly fixes) Requires Restart

A lazy fixing of Image Zoom

Not yet rated
220 users

AastraClickToCall Requires Restart

Converts telephone numbers into clickable links for use with Aastra IP Phones

Not yet rated
20 users

MultiTemplateLoader Requires Restart

Manages & applies multiple HTML templates when creating/replying messages.

Templates may be either local files or online links (http:// or ftp://). Up to 9 templates can be defined and easily switched, also using shortcut keys.

Not yet rated
42 users

Identity Checker Requires Restart

This add-on checks to sender identity when send a message.

Not yet rated
15 users

Layout Button Requires Restart

A toolbar button to switch between layouts.

Not yet rated
80 users

Large Fonts Requires Restart

This add-on enables you to change the font size of the plain text editor of Thunderbird.

Not yet rated
151 users

TexTra Thunderbird Requires Restart

Thunderbirdのメールのテキストを翻訳、辞書引きを行います。

Not yet rated
24 users

ConferenceCall.co.uk templates

This plugin adds our savvy email templates to your Thunderbird toolbar.

Not yet rated
8 users

Telefonkonferenz.de-Vorlagen

Durch das Plug-in werden unsere praktischen E-Mail-Vorlagen Ihrer Thunderbird-Symbolleiste hinzugefügt

Not yet rated
6 users

AdSidebar

Live in harmony with ads.

AdSidebar is an alternative to traditional ad blocker extensions that benefits both the user and content creators. Ads are displayed in a sidebar on the right side of the screen.

Not yet rated
13 users

ConferenceCall.nl templates

Voegt de handige e-mail templates toe aan de knoppenbalk van Thunderbird om deelnemers aan uw conference call uit te nodigen.

Not yet rated
3 users

B-Trust Tool NEW

Configures B-Trust security devices, imports B-Trust certification chain.

Not yet rated
2,164 users

Emoji Requires Restart

Add emojis to your e-mails.

Not yet rated
789 users

EuropeanMX Spam Reporter Requires Restart

Train your EuropeanMX filter by reporting unrecognized spam or false-positives back to us.

Not yet rated
13 users