This last feature would be a useful one. Unified cross-device session management (or tab and window management if we're not being fully exciting). Drag and drop tabs across devices and windows (closing/opening across devices) all in one place? Useful...
You're looking for something entirely different than Firefox View. you're looking for things like:Bookmarks with folders.Window Titler extension.Vertical tabs with tab grouping.OneTab to "offline save" your tabs.
Do you find Firefox View useful for information retrieval? No, not in the slightest. It's inferior to history button for recently closed history, and Synced Tabs toolbar button and sidebar pane for that. Opening another page (and a rather not-pleasan...