@louisderrac it is probably important to add that this change only affects Mozilla's binaries, so any Mozilla built from source such as this in Linux distros is not submitted to this new assertion

I don't think you have to worry about @thunderbird though, Mozilla doesn't seem to care about it at all, they tried to kill it, then get rid of it, eventually just turned it into subsidiary and gave free pass. Thunderbird doesn't even want to use Mozilla account for their sync.
I remember your previous video on Firefox alternatives and the conclusion was "nothing better tbh" and I believe that the only thing that changed since is Mozilla being even worse.

@_marco_ @ponda We also wanted to additionally clarify that we won't be adopting the Firefox Terms of Use for Thunderbird, either on desktop or on mobile.