Add Native Workspaces, Split View, and Saved Tab Groups Like Edge & Chrome

[Sabretooth2438]

Preview:
Firefox needs built-in Workspaces, tab split view, and bookmarkable tab groups to match modern browser productivity features.

Body:
Firefox is falling behind in tab management compared to Edge and Chrome. Three features would significantly improve productivity for users:

1. Workspaces – Like Edge, allow users to create isolated workspaces with saved tabs for different tasks or projects.

2. Split View Tabs – Let users view two tabs side by side within the same window, which is which is useful for research and writing.

3. Saved Tab Groups Near Bookmarks – Like Chrome’s "Save Group" option, users should be able to save tab groups and restore them later from a visible toolbar area.

These features reduce clutter, help focus, and are already loved by users of other browsers. Firefox needs native support, not just add-ons, to stay competitive.

[Jon]

Thanks for the feedback and suggestions, @Sabretooth2438! Since there are multiple suggestions, I'm moving this post to the Discussions board. Also wanted to let you know that there are idea threads for each of these ideas here:

Workspaces à la Opera 

Split-screen/Tab-in-Tab feature (view more than one tab at once) 

Save Tab Groups even if you close the window (like Chrome) 

Feel free to check them out, vote, and add your input 🙌