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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.
And yet they've turned their back on *Android tablet users and refuse to support the tab bar.
https://github.com/mozilla-mobile/fenix/issues/2344
Ridiculous. Only reason I switched to Vivaldi
iOS/iPad OS is relatively much easier to develop and it's a completely different branch from Android as it's a skin on top of Safari Web View. All other platform use their own Quantum/Gecko Engine.
if you want to get things done, use a real OS and not an artificially limited mobile OS.