Software · Office & notes

Birdtray

System tray new mail notification for Thunderbird.

Completely free
Linux
Open source

At a glance

Birdtray is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (GPL-3.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

Open source code
Commercial use allowed

About

Birdtray is a system tray new mail notification for Thunderbird, which does not require extensions Features: Shows the unread email counter in the Thunderbird system tray icon. Optionally can animate the Thunderbird system tray icon if new mail is received. You can snooze new mail notifications for a specific time period. Birdtray checks the unread e-mail status directly by reading the Thunderbird email search database. This means it does not need any extensions, and thus is immune to any future extension API changes in Thunderbird It can hide the Thunderbird window, and restore it. There is also context menu for that. You can configure which accounts you want to check for unread emails on You can choose different font colors for different email accounts. This allows you, for example, to have blue unread count for personal emails, red unread count for work emails, and green unread count if both folders have unread mail. Can launch Thunderbird when Birdtray starts, and terminate it when Birdtray quits (configurable). Can monitor that Thunderbird is running, and indicate it if you accidentally closed it. Has configurable "New Email" functionality, allowing pre-configured email templates. The feature to "Start Thunderbird when Birdtray starts" needs the flathub thunderbird installed by default. The default thunderbird directory is "~/.var/app/org.mozilla.Thunderbird/.thunderbird".

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) — 9 November 2026
Last technical check: 7 November 2026
Description from Flathub — AppStream (Flathub)

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