Extensions en test

by klint

32 Add-ons in this Collection

Auto Resize Image by TrVTrV

Rated 4 out of 5 stars 28 reviews

15,606 users

Resizer for inline and attachment images (JPEG, PNG, BMP and GIF image formats).
All platforms are supported (Windows, Linux and Macintosh).

Manually sort folders by Jonathan Protzenko

Rated 4 out of 5 stars 168 reviews

150,373 users

This extension allows you to manually sort (order) your folders in the folder pane of Thunderbird or automatically sort them, but in a better way. This extension also allows you to re-order accounts in the folder pane.

Classic Theme Restorer (Fx29-56) by Aris

Rated 5 out of 5 stars 1,278 reviews

267,018 users

Squared tabs, application menu, add-on bar, small button view and many more 'old' features for 'Firefox 29-56', not for Firefox 57+!

Release builds
Beta builds

Download Manager Tweak by squashr1979, andman42

Rated 4 out of 5 stars 401 reviews

25,895 users

Allows the download manager to also open in a tab or sidebar, and adds some optional display changes.

Copy Folder by jwolinsky

Rated 3 out of 5 stars 49 reviews

11,008 users

The missing Thunderbird "copy folder" feature! Copy folders or entire POP/IMAP accounts recursively to any location while maintaining folder structure.

Awesome Auto Archive by wang opera

Rated 4 out of 5 stars 27 reviews

6,980 users

Automatically do Archive/Copy/Delete/Move actions based on user defined rules

Contact Tabs by speedball2001

Rated 4 out of 5 stars 53 reviews

16,030 users

Contact Tabs enhances Thunderbird to give you quick access to all your contacts directly from Thunderbird's main window: Use the powerful search field to find your contacts and open them in a new tab for viewing and editing.

PixelZoomer by Matthias Schuetz

Rated 5 out of 5 stars 25 reviews

4,147 users

PixelZoomer takes a screenshot of the current website and provides various tools for pixel analysis. You can zoom into websites (up to 3200%), measure distances and pick colors with an eye dropper.

Quick Folder Move by Philipp Kewisch

Rated 4 out of 5 stars 55 reviews

4,132 users

When filing messages, a search box will show up allowing you to quickly enter the folder name you want to move to.

If no search term is entered, a list of recent folders will show up instead.

Grammar Checker by Alexander Slesarev

Rated 3 out of 5 stars 5 reviews

2,755 users

Checks grammar using LanguageTool.

Allow HTML Temp by Alexander Ihrig

Rated 4 out of 5 stars 59 reviews

10,118 users

This Add-on allows to have HTML temporarily allowed in the currently displayed message by only one click. When switching to another message, it'll be shown automatically again in plain text or simple html mode (if this is your default mode).

Mail Summaries by squib

Rated 5 out of 5 stars 40 reviews

4,416 users

Adds a summary of mail accounts and folders to replace the account central pane and the empty folder preview

eCleaner by flasresizerdeveloper

Rated 4 out of 5 stars 67 reviews

6,546 users

Clears preferences left by extensions after uninstallation

BugzillaJS - Tweaks for Bugzilla by Gregory Koberger, MattN

Rated 5 out of 5 stars 12 reviews

718 users

BugzillaJS adds a number of features to Mozilla's Bugzilla. Keyboard shortcuts, quick file links, inline image/github previews, gravatars and more.

Zoom Button for Thunderbird by Access Firefox Project

Rated 4 out of 5 stars 11 reviews

3,066 users

Zoom in, zoom out, and reset zoom with one toolbar button. Works in the Compose window too.
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