I know this is old news by now, but I was not sure how to activate vertical tabs on all of my browsers. It certainly is not obvious, so I wanted to include the instructions here in case anyone else wants to try it out.
Type about:config into the address bar of Firefox. You’ll be greeted with a warning that you are accessing advanced settings - click “Accept the Risk and Continue.” Search for the boolean preference sidebar.verticalTabs and set to true. That’s it! Enjoy your vertical Tabs!
Edit: You may also need to set sidebar.revamp to true if it is not already/automatically set.
They really should have a browser that can have side by side sites so I don’t have to keep doing that in the OS. Maybe I should just invent one. I don’t know about anyone else but almost all of my workflows at this point are one side reference material and the other side what I’m working on.
There’s the Side View extension, perhaps?
Zen browser, a Firefox fork trying to imitate Arc (chromium).
There is a very good addon that does this. Tiles WE It toggles splitting your browser in 2/3/4/6 windows tiled, or custom layouts. Also fancyzone and altsnap are great tiling manager https://addons.mozilla.org/en-GB/firefox/addon/tile-tabs-we/
Also what is this https://addons.mozilla.org/en-GB/firefox/addon/tiled-tab-groups/
I’ll have to give that a look, thanks.
There is a learning curve, but if that’s something you use often enough to remembers all tge capabilities and quirks then it’s great. Especially combined with a screen zone manager like altsnap and fancyzone
Opera can do this, but it’s chromium