Earlier quoted context omitted.
Can you please link to instructions on how to do this?
1. Create a collection of addons you'd like to use on AMO (e.g. via desktop mode) 2. Use Firefox Nightly 3. Click several times on the firefox icon in settings > about until developer mode is enabled 4. Click "change addon collection" and enter your AMO userid as well as the name of the collection you created in step 1 5. Firefox is restarted, and you can install all addons from your collection (if this doesn't work,…
Many addons work already, but they're locked behind mozilla's vetting. Not only you need to jump through additional hoops, but you actually require an account on Mozilla's website as well.
This is like saying that Chrome is fine too, just use Chromium, get the addon from a github release and there you go!