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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.
Yeah it'll be a big task nonetheless. Firefox for Android needed gecko components to be ready to make use of gecko view, their rendering "engine". iOS may be need its own version of gecko view, at least the bindings for it, as well as a new set of components for all the UI elements a full fledged browser may need.