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

[KERR]

Currently I'm doing research on a heap of products, and collating into an online spreadsheet. I'm wearing out the Ctrl+Tab keys flicking back and forth, copying/pasting etc!

It would be awesome to "pop-out" a tab and have it "float" on top like what Picture-in-Picture does. I know you can the tab in a new window, resize it, move it etc but it still doesn't stick on-top and has borders that take up space.

I've seen extensions that try to do split screen for tabs but they don't seem to work very well. Thanks!

[Realgar]

This will be immensely helpful in online genealogical and historical research that I perform through my contributions at WikiTree. I hope to use it in tandem with our Browser Extension that already helps simplify inline citation creation from various sites that I would be split-screening as I work on a genealogical profile. 😊

[deadlydog]

Not sure if it's been mentioned already or not, but I'd love to be able to add pinned tabs to the split view. Currently, it seems to only support non-pinned tabs.

With tabs that are in a group, they can only be added to the split view if the group is expanded. This makes sense so as not to clutter up all of the suggested tabs; just took me a minute to figure out.

[maestro2026]

I really like split view, I need it for pinned tabs. Please make it work.

[maestro2026]

I really like split view feature, although it currently doesn't work for pinned tabs. Please make pinned tabs also work.

I would also like the feature to open a link in split view with middle click or in the right click context menu.

[stamellashroom1]

Quite useful.

Only frustration is that the hitbox for a tab in a group doesn't quite extend to the top of the screen like a normal tab does, so you can't click it if your mouse is at the very top of the screen.

[kitidate]

I appreciate the split-screen feature. I’ve been using side-by-side windows regularly by dragging tabs to the side, bottom, and top. However, it became too crowded when I had Firefox windows open, and I couldn’t read them well. Most of the time, I have one window for the source of audio clips, a second window for the audio that plays on the website, a third window for the text of the English lesson related to the clips, and a fourth window for Google Translate. When it’s not practical to view them clearly, I move some windows to another desktop (using the multiple desktops feature in Windows 11). Your new split-screen features help me a lot. I hope you continue to develop it to allow for more splits and the ability to position windows anywhere on the screen, or even let them overlap.

[oamael]

Split view in Firefox

Very well with these new features, but the search bar should also be split. In the top bar, there is the display of the domain name, only for one of the two sites. Doing a search, Translate, Reload the page and go back, can be difficult to use, it happens that we did not select the right page.

[eshjordan]

Enjoying the split tabs, one suggestion:

Currently, if I have a single tab in focus, then right click on another tab and select "Add Split View", it opens the "about:opentabs" page on the other side.

It seems that it might be more intuitive if the tab I already had open, and the tab I right clicked on were opened side-by-side instead.

Thanks!

[PetePete]

I frequently drag out tabs for side-by-side views, but building it in like this makes it faster to set up (a couple clicks rather than a bunch of dragging, moving, and potentially awkward resizing if on Windows), plus it's faster to move both tabs around together, if need be.  It also avoids the awkwardness of window gaps and positioning imperfections if I'm stuck on a Windows system without something like AltSnap and want workspaces that aren't a half/quarter of the screen.  The advantage over my workflow on Linux is smaller due to its better window management options, but the benefit is still solidly there.

Together with the recently rolled out custom keyboard shortcuts, the somewhat older rollout of the sidebar stuff (vertical tab bar, switching to/from icon-only tabs there, sync related things), plus the container tabs I've been using for a while now, plus the new profile manager and associated stuff like moving tabs between profiles, plus usable local translation (far from deepl-level, but that's fine), plus making the ai junk in general non-mandatory...it's safe to say that, for me at least, this is the best Firefox UX improvement spree I've seen in years.  Maybe in a couple decades!  🙂

Oh, and imo nice work on the visual and initialization aspects of this feature in the tab bar!

A mix of GUI changes, mostly on mobile, were most of what pushed me to try out and then move to Vivaldi some years ago, but I've been very happy using Firefox more recently, and for me this addition fixes the last of the caveats of switching back.  (Aside from the lack of profile switching on mobile, but I didn't have a use for that until shortly before the new manager was added anyway. 🙂 )

[PaulieD]

Love the split screen. It would be great to have a button on the tool bar.

[Ramouz]

@PaulieD - There's no button like in Vivaldi and Edge? I didn't try it yet since I use stable Firefox, but that would be a shame. We need a button.

[TscheiAar]

It would be very, very helpful if you could also open a bookmark right away by right-clicking in split view.

Thank you very much, and best regards from Switzerland!

[Tony_blue]

Hi Mozilla team,

Thanks for the split view feature.  It saves me from dragging tabs out onto the desktop and manually resizing browser windows.   I also like the ability to resize the views by dragging the center pane/border.

[tnleeuw]

@user02 Split-screen is obsolete since 1968 because it's the task of the window manager?

Well the same could then be said about tabs.

But I do not agree with this opinion. There is so much that cannot be done from within the window manager, or that is far less efficient to do for the user with the window manager, or are not / poorly supported by current window managers in common use on common OSes.

Synchronizing scrolling and zooming of different viewpanes becomes much more cumbersome when you have to do that via the window manager -- the window manager has to know which windows to group for that.

Moving all panes around the screen together in a group.

Window switching, to switch to either a different application or an entirely different window of the same application that is not part of the tiled-window-group.

Efficiently adding or opening another panel to the split view: the application knows how to re-group / re-arrange the panels for you but with the window manager you will have to manually resize the windows and move them around.

Screen space efficiency: when each pane is it's own (browser) window, each window has the window manager chrome plus all the application (browser) specific chrome. When the application itself manages the split view, it can more efficiently manage screen space and reduce the number of controls surrounding the content.

So, I find it much more efficient if an application offers its own split-pane view and will use that every time I have a need for it, rather than the features of the OS window manager.

[therlanetoph]

Hello,
there should be setting to disable the function.

Reason: I accidentally trigger the function and don't to learn how it behaves, e.g. how to separate the tabs again.

Personally, I use Microsoft Windows and since Windows 7 introduced in 2009, there is very clear functionality to accomplish the very same thing by using different browser instances and pulling them with the mouse to the edge of the screen, or WINDOWS + UP, WINDOWS + RIGHT etc.

I have invested thousands of hours training this function.

I don't see an advantage of this. I have 50+ tabs across multiple instances of Firefox open at any point in time, and this doesn't add to my experience. If there is an advantage like reduced memory usage or that I can easier CHANGE what is on the right and left side of my screen than before, I rest my case.