You’ll to use firefox collections with either Nightly or Beta, add the addons you want to a collection and add the collection in ff mobile then you can use the addons. https://www.ghacks.net/2022/10/20/firefox-beta-for-android-now-supports-custom-add-on-collections/
I also had to export LibRedirect settings from desktop and import on mobile because the settings interface is a bit borked. There is also Privacy Redirect which should work out of the box.
A user on tildes describes how to go scorched earth for mods: