Mozilla New Mail Icon is an extension which displays an icon in the system tray when new mail arrives in your Mozilla Mail or Mozilla Thunderbird . It supports the standard (FreeDesktop.org) system tray, as used by GNOME, KDE, and IceWM.
Release Notes: This version was fixed to allow the New Mail alert feature introduced with Thunderbird 2.0 to be used along with this add-on.
Release Notes: The extension was updated to work with Thunderbird 2.0. This update also adds support for indicating new mail with the keyboard LED.
Release Notes: This release fixes installation on Thunderbird 18.104.22.168 and on x86-64 builds of Thunderbird.
Release Notes: This release fixes installation on Thunderbird 1.0, a "cutoff icon" glitch on KDE, and a problem with the Russian localization. Unnecessary library dependencies have been eliminated, allowing the XPIs to work on older systems without libstdc++.so.6, Pango, and Cairo.
Release Notes: The extension was updated to support Thunderbird 1.5 pre-releases. (Thunderbird 1.0 packages are still available.) By popular request, an option to always show a tray icon was added, allowing you to minimize or restore a window. Support for mail indicator LEDs on various laptops was added. Localizations for more languages were added.