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1000+ Firefox for Android extensions now available – Mozilla Add-ons Community Blog
(blog.mozilla.org)
This is a most excellent place for technology news and articles.
I bought it used. The phone lasts me through alight, I would say it has the capacity for 4 hours of screen on time.
Though Ubuntu Touch drains more on standby so often when I'm in the mood to try it I have to replug it in.