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UnMHT No Restart

UnMHT allows you to view MHT (MHTML) web archive format files, and save complete web pages, including text and graphics, into a single MHT file in Firefox/SeaMonkey.

Rated 5 out of 5 stars (217)
79,391 users
Updated August 29, 2015

Dict

Looks up the definition of words on a Web page.

Rated 5 out of 5 stars (14)
1,177 users
Updated August 29, 2015

Theme Font & Size Changer No Restart

Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.

Rated 5 out of 5 stars (147)
89,959 users
Updated August 29, 2015

Bluhell Firewall No Restart

Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.

Rated 5 out of 5 stars (233)
137,088 users
Updated August 29, 2015

Do Not Save Password

Prevents to save passwords.

Not yet rated
22 users
Updated August 28, 2015

Disable about:config

Disable about:config feature of Firefox and Thunderbird.

Rated 1 out of 5 stars (1)
261 users
Updated August 28, 2015

Only Minor Update

Applies only minor updates of the application.

Not yet rated
147 users
Updated August 28, 2015

Dictionary for recipient No Restart

Sets the spell check dictionary based on the first recipient

Not yet rated
2 users
Updated August 28, 2015

Force Addon Status

Provides ability to change status of specific addon (enabled/disabled).

Not yet rated
2 users
Updated August 28, 2015

Classic Toolbar Buttons No Restart

'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7s small view, Fx 4-12s large view & Tb 5-14) for current Firefox, Thunderbird and Seamonkey versions on Windows.

Beta builds on versions page!

Rated 5 out of 5 stars (144)
39,686 users
Updated August 28, 2015

ICS Inspector

This extension provides many debugging options related to calendar development. This includes showing the ics data for an event or calendar, evaluating javascript on an event or calendar, and some menu options for debugging.

Rated 4 out of 5 stars (1)
828 users
Updated August 27, 2015

Bring to OneNote

Send text and images to Microsoft Office OneNote from firefox. With section dialog, we can select an OneNote section to store page with title.

Rated 4 out of 5 stars (4)
3,085 users
Updated August 27, 2015

Text Link

Allows URI texts written in webpages to be loaded by double clicks.

Rated 4 out of 5 stars (289)
157,356 users
Updated August 27, 2015

RemindIt No Restart

Help in reminding mails to be answer or sent again. Choose a reminder date for each received or send message that are highlighted in the message list, depending on their status (expired, soon to exprire, to be reminded). Sending a reminder is eased.

Rated 3 out of 5 stars (16)
315 users
Updated August 27, 2015

ThunderStats! Your Thunderbird Statistics!

Do you remember the old good Eudora statistics? Do you miss them?
Using this addon you can finally keep an eye on how you use your beloved Thunderbird!

Rated 4 out of 5 stars (1)
151 users
Updated August 27, 2015

Mail Redirect Featured

Allow to redirect (a.k.a. "bounce") mail messages to other recipients.

Rated 4 out of 5 stars (123)
30,996 users
Updated August 26, 2015

S3.Google Translator

S3.Google Translator adds the power of Google Translate’s automatic translations to your browser!
It supports translation of selected text, entered phrase or whole webpage between any of 80+ languages.

New Feature: Language learning!

Rated 5 out of 5 stars (221)
249,084 users
Updated August 26, 2015

Squared Australis Tabs (Tb) No Restart

A small and simple extension, which replaces the curved tabs of the Australis design with squared ones, similar to Thunderbird v14 and prior.

Not yet rated
22 users
Updated August 26, 2015

Cardbook

VCard Addressbook : a new addressbook for Thunderbird based on the VCARD standards

Not yet rated
20 users
Updated August 26, 2015

Send Later

True "Send Later" functionality to schedule the time for sending an email.

Rated 5 out of 5 stars (39)
54,366 users
Updated August 26, 2015