For the list of latest changes click here. For Thunderbird 68, click here.

Latest News (15/04/2023) - Thunderbird 115 Compatibility

I am currently working on fundamental changes for Thunderbird 115 which first was release on July 11th and has a completely new user interface "Supernova". This required considerable work of rewriting all elements interacting with the main page (3pane) of Thunderbird (toolbar buttons, menus, folder tree) - this also includes drag and drop.

In my estimation, this work will take around 2 man-months. So it is very important that this effort is funded via my Add-on licenses. There are 2 license levels - please read the comparison chart to see which additional functions you get depending on your license. To download preview versions for Thunderbird betas or be informed about ongoing development on the new branch please leave feedback (or click the emoji button) at the Github issue 351. I am also discussing necessary changes to the UI, so please have your say there.

Thunderbird 115 is using the same system for permissions as the previous versions, and QuickFolders still has to use experimental APIs to achieve its full functionality. So you will see a message asking for full permissions. There is an article on Mozilla support explaining the detail.

In short: As Thunderbird follows Firefox which moves toward web extensions, a new technology has emerged that restricts Add-ons to use only managed entry points (APIs) for adding functionality - these are still largely incomplete as regards the many things Add-ons can actually add to the application. That's why Thunderbird allows using "experimental APIs", which is essentially a wrapper technology that allows (substantially modified) classic extensions to run on this system.

This also meant yet again splitting the code base for the older versions and having separate releases (it's not possible to combine both system in a single Add-on). Essentially new functionality will go into the newer versions of QuickFolders (6.0 and higher) whereas I back-port bug fixes and some selected functionality to the older versions of QuickFolders (5.15 and higher). Both versions will automatically update the correct user base as usual.

Thunderbird 68 support has ended on

Unfortunately does not accept updates for legacy versions anymore - they only support the new "Mail extension" format and our "mail extension with experimental APIs" which is a workaround for missing advanced features.

From of version 4.23 forward you have to install such legacy versions from the github releases page.

Major Features

Premium Feature: quickJump

A super quick way to find folders and Tabs by entering part of their name:

Click on the quickJump button (or use the configurable keyboard shortcut SHIFT+J in QuickFolders Pro):
quick Jump
A Search box opens where you can type a folder name and hit [Enter]. Or hit the [Down] key or mouse to select from the list of suggestions.
Find Folder results
If exactly one matching folder is found Thunderbird will jump to it immediately. If multiple folders match a dropdown will show. Selecting the folder (or tab) name will jump to the folder.
Select Find Folder from the menu again if you want to hide the search box.

Premium Feature: quickMove

Uses the same button for moving mails to any folder:

Simply drag some mails up to the quickJump button (or use the configurable keyboard shortcut SHIFT+M in QuickFolders Pro), and then type the name of the target folder. The name is shown in red to indicate that mails are going to be moved. Note that you can gather mails multiple times and even from different folders - the mails won't be moved to the destination until you click on the suggestion on the search box.

Start typing to get relevant folder suggestions:

Clicking a folder name will move the dragged emails to the new destination and complete the quickMove operation.

You can also use this button for jumping to a folder by clicking it (quickJump).

To access child folders of any given folder use the key "/" - just enter the first characters of the parent folder followed by "/". This will additionally give you the option to create new subfolders before you move the mail.

The Escape key will hide the red box temporarily. You can right-click the button to display more options and the list of emails that are lined up for moving:

You can open the emails in a tab by clicking them.

Palette Types

It is now possible to select independent palettes for the different tab states selected » hover » dragover » uncolored.:
new palette selections

this way the signalling of important states (such as the current folder) can be made to stick out so it can be located much more easily.

Also the new architecture of palette options makes it easier to add different palettes in future versions.

Version Details

All dates are displayed in UK format: dd/mm/yyyy - you can request any version that is marked as not released or any old version listed; just send me a personal email from the quickfolders options dialog » on the Support tab - [(Jump to Screen Shot)].

Contact Me Directly

The quickest way to contact me (apart from filing a bug report): Right-click the QuickFolders toolbar, select QuickFolders support, then click the last button:

Contact Me!

Or click below to send an email

My other Extensions - highly recommended


quickFilters (Thunderbird) Quickly generate mail filters on the fly, by dragging and dropping mails and analyzing their attributes.


SmartTemplates offers an easy way to customize Thunderbirds default quote header by using templates. Templates can be created for every account as well as for global settings (for all email accounts).

Zombie Keys

Zombie Keys for Firefox » SeaMonkey ; Zombie Keys for Thunderbird » Postbox

Entering European languages (which include diacritics (accented characters, diaeresis, umlauts, etc.), ligatures, the Euro sign, etc.) into Mozilla applications using a non-native keyboards doesn't have to be a pain any more!