Firefox Nightly has begun testing a new 'Split View' feature, which allows you to split your window into two halves and view different web pages side by side. Take note – Split View is ready for ...
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Firefox is testing a split-screen mode and tab notes
Mozilla is starting to test a split view mode for Firefox, allowing you to have two pages open at the same time without two browser windows. The browser is also getting editable notes for your tabs.
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