While Firefox is already built with Wayland by Mozilla (thx. Mike Hommey) and also Fedora ships Firefox Wayland, Thunderbird users (me included) are missing it. But why to care about it anyway?
Wayland compositors have one great feature (at least for me), they perform screen scale independently on actual hardware. So I can set 200% desktop scale on semi HiDPI monitor (4K & 28″) and all Wayland applications work immediately at that scale without font adjustments/various DPI tweaks/etc.
So here comes the Thunderbird with Wayland backend. I generally did the package for my personal needs and you can have it too 🙂 Just get it from Fedora repos as
dnf install thunderbird-wayland
You’ll receive ‘Thunderbird on Wayland’ application entry which can be registered as default Mail at
Settings -> Details -> Default Applications
Some background info:Â recent stable Thunderbird (thunderbird-60.5.0) is based on Firefox ESR60 line and I backported related parts from latest stable Firefox 65. Some code couldn’t be ported and there are still issues with Wayland backend (misplaced menus on multi-monitor setup for instances) so use the bird on your own risk.