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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.
It still does, experimentally, if you enable developer settings, rather unintuitively through a Firefox Add-Ons account. Developer settings are not available in the official release but the Nightly builds as well as some forks, like 🦊Fennec, include them. Of course the addon settings often look out of place on a small screen and things like uBlock's Block Element picker do not work as intended.
Well, the bizarre collection workaround is present in Beta and Nightly releases as well, and is intentionally well hidden. It also allows installing/uninstalling extensions quickly when testing on multiple devices, or sharing extension collections with testers. It is indeed needlessly convoluted for users but I would not describe the workaround as dumbass if it works well for the intended audience. You are correct, plenty of Firefox’s advantages can only be achieved by modifying the settings from defaults, often through developers’ hacky about:config keys. Mozilla thinks that mass adoption and their financial security is only possible if they make a noob-friendly browser with a few big buttons and Google search so tech-savvy people need to jump through hoops (profile importing etc.) to quickly set up the browser to their liking.