With Quantum, Mozilla is trying something different. A project called Electrolysis reworked the older Firefox browser into a multi-process app that became Firefox Quantum, explained Ryan Pollock, the Firefox product marketing manager, in a blog post. In Firefox Quantum, instead of assigning each tab its own process, only the first four tabs have a dedicated process. Other tabs share the processes used by the four most-used tabs. In this way, Firefox Quantum tries to balance memory usage and performance, Pollock explained.
Firefox Quantum will ship with a range of features, including the company’s traditional cadre of extensions. Firefox Quantum allows users to snap screenshots right from within the browser, store webpages for later viewing with Pocket, sync tabs with mobile versions of Firefox, and more. Firefox Quantum also uses the new Photon UI, which you can see in the screenshots. If you’re using a touchscreen, the icons will automatically enlarge for your finger, Mozilla said.
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