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Firefox outperforms Chrome in speed for the first time according to a Speedometer assessment
(alternativeto.net)
This is a most excellent place for technology news and articles.
A browser—any browser—does have to do most of what an operating system does. Every web page is an app and many of them are as complicated as desktop or mobile apps. Hell, a lot of them are full desktop apps—a lot of "native" desktop apps are just web apps running in a special browser window that lacks the usual browser UI.