When an invalid license was entered in version 5.3 no feedback or reason for it not working was given.
Fixed: Moving mails with context menu moves wrong mails (it switched to mail below the selection and moved that instead).
Fixed: On some machines, quickFilters is not loading at startup (due to accounts not loading).
The license validation didn't tell if license failing - fixed in 5.3.1.
#Is youtube useless on a 4.0.3 tablet now ? registration
The link on the registration screen in 5.3 accidentally directed to buy a QuickFolders license.
Added support for quickFilters Domain licenses - you can buy a domain license that can cover multiple users with a single license here.
Restricted special search methods in the filter list to licensed users only.
Options are now available through Add-ons Manager / quickFilters "Wrench Icon".
Splash screen: instead of displaying this as soon as Thunderbird installs a new version of Thunderbird, this is now available by clicking the message on the assistant button which shows the fact that quickFilters was updated.
Added colored icons and theme support in message filter list toolbar.
quickFilters is now compatible with Thunderbird 91, which commences the next ESR period (2021-2022).
Removed experimental APIs for notifications and reading accounts that worked around Bug 1710359.
Fixed in 5.3.2 - The link to premium features directed to QuickFolders site, not quickFilters!.
You can now buy a license for your enterprise, have a single license for muliple users and save money and time from 5 users and more.
Extended special offer for getting a quickFilters Pro license to 12th of September.
QuickFilters Change Log - Version 5.3.2 - changes since 5.2.1 Maintenance Release 5.3.2