I’m using https://skymoth.app/ so far so good

Well, this is my first time hearing Betterbird

After reading their feature table https://www.betterbird.eu/#featuretable I think they have a really laudable goal.

I’d suggest to check the feature table first. If there is anything you concern, you pick Betterbird. Otherwise, you can choose one randomly :)

This is annoying, while there are a few things we can do

1. Report this issue at https://webcompat.com/
2. Change UA to trick this website https://addons.mozilla.org/en-CA/firefox/addon/user-agent-string-switcher/
3. Best choice, change another store :)