The functionality of this addon is now built-in to Thunderbird 91.

This version sets a strict_max_version of Thunderbird 78.*, so that this addon will be marked as incompatible with Thunderbird 91 at upgrade time. Thanks for sticking with this addon for so many years!

- Converted to a WebExtension for Thunderbird 78 compatibility, as Thunderbird has dropped support for legacy bootstrap extensions. Thanks @homo-programmatis for navigating some of the underlying API changes.
- Change to use WebExtension local storage APIs instead of the legacy preferences system.
- New "modern" icon style to match with current Windows design conventions.

Conversion into a WebExtension to support Thunderbird 68. Because of this, this version of the extension is not supported in pre-68 Thunderbird versions; please use 1.x versions for that. (Thanks @jamesg-nz)

Support for a user preference to count only the primary inbox. (Thanks again to @jamesg-nz)

Compatibility with Thunderbird 60. (Thanks to GitHub user homo-programmatis for the fix!)

Now compatible with Thunderbird 52 and 60.0beta2!

- New, rounded icon.
- Better support for higher DPI settings.
- Ignore unread messages in junk, drafts, sent, and trash folders for counting purposes.