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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.
That's nice, maybe they can finally re-enable about:config in the damn thing too. They removed it from mobile Firefox years ago and the lack of it aggravates the hell out of me.
It's available in nightly (and I think dev) builds
If you don't want to use the potentially unstable Nightly, Dev or Beta, you can use Fennec (stable builds with dev features).
probably in normal Firefox too, it's just hidden in all of them
Fennec still supports it, just as it supports add-ons from the official Mozilla store. Don't see any reason why I should go back to the official app.
Yup. Unless they break anything, which I can't really imagine at this point.
Is there an easy way to migrate from the official app to Fennec? Keeping accounts, extensions and settings?
If you have enabled the sync feature in Firefox, it seamlessly works with Fennec; as does the integration between Fennec and Firefox Desktop. Simply log on with your Firefox account in Fennec, and you won't even feel the difference.
How do I make use of this? I can't see a way to install them on my Fennec from F Droid
You have to add a custom addons collection. That's how.
I haven't gotten around making them and using them, and it seems every guide online is vastly out of date