Firefox Introduces Split-View Feature for Side-by-Side Tabs

Mozilla has introduced Split View in Firefox Nightly, letting users browse two sites side by side, along with Tab Notes and ...
How-To Geek on MSN

Firefox is testing a split-screen mode and tab notes

What was that tab for again?
AOL

Set Up Mac Split Screen View to See Multiple Windows at Once

If you have at least 10 browser tabs open right now, this Mac hack is for you. Mac split screen view lets you keep multiple windows running simultaneously. With this setting, you don't have to waste ...