Same. And I love Android Firefox. Would be horrible not to have Firefox extensions on my phone (or the syncing).
If you want to install any other not in the blessed list you need to jump through a horrendous sequence of hoops every time:
https://blog.mozilla.org/addons/2020/09/29/expanded-extensio...
It's by far the most annoying aspect of Mozilla yet the organization has never taken steps to prevent the practice.
Mozilla programmers are a law unto themselves—users bedamned.