I was trying to write a script which would add a new mail icon to my system tray, but apparently Thunderbird does not support checking for new mail from the command line.

I've tried a number of plugin, but they all seem to have only a vague description. The ones I tried just modified the new mail popup.

Therefore I'm looking for a plugin which displays an icon in the system tray for unread mails. It's not necessary to display the number of unread mails, but it would be nice though.

1 Answer 1


In the past I used this plugin: https://addons.mozilla.org/en-US/thunderbird/addon/firetray/

a quote from the official plugin page:

display unread messages count in tray icon

Worked perfectly as far as I can remember.

  • 1
    Firetray does not show mail count in the system tray on KDE due to limitation of libappindicator, see here Commented Dec 1, 2016 at 4:09
  • 5
    As of Thunderbird 60.0 (August 6, 2018), FireTray is no longer compatible.
    – Sparhawk
    Commented Aug 11, 2018 at 1:31
  • 4
    @Sparhawk Fortunately, there is a fork for Thunderbird 60+ github.com/foudfou/FireTray/issues/242
    – tuxayo
    Commented Nov 14, 2018 at 14:37
  • @tuxayo Brilliant! That works perfectly. Thank you for posting here.
    – Sparhawk
    Commented Nov 14, 2018 at 21:57

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