Rated 5 out of 5 stars

by Bsmitty on June 17, 2025 ·

Saves precious real estate on small screens. Please update to work with 139!

UPDATE: I'm always connected to the internet. This happened when I updated to 139.0.2 (Mac). I tried reinstalling, but got a popup that says: "Compact Headers could not be installed because it is not compatible with Thunderbird 139.0.2." Thoughts on what to do next?

by Dillinger (Developer) on June 18, 2025 ·

Works with 139, you need to be connected to the internet to update the max version.