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Firefox to become first mobile browser to support desktop extensions later this year
(blog.mozilla.org)
This is a most excellent place for technology news and articles.
At least with firefox beta, you can create your own collection of extensions and use those. That's what I do and I can install any extension.
More here: https://www.androidpolice.com/install-add-on-extension-mozilla-firefox-android/
I have it on Firefox Nightly with the dev stuff. It's pretty great tbh