[yosefk]

The real problem is that the browser won't let you control the width of a tab without resizing the browser window, which is a bit fiddly, exposes stuff behind the window, and makes you resize the window again and again when moving between tabs.

If you could easily shrink a tab, I would prefer websites to not limit text width. Since you can't, I sorta prefer them to do it, though it's much worse than the user controlling it in a nice per tab way

[zelphirkalt]

(1) reader mode (made for that purpose)

(2) user stylesheets (permanent solution, but you could have multiple and use an extension to enable disable different widths)

(3) responsive mode (in dev tools, most flexible, but most cumbersome to reach)

(4) Other extensions

There are easy ways to resize the viewport, so the premise is false.

[fodkodrasz]

you can "pop out" a single tab to a new window.

[Cockbrand]

You could use the browser's dev tools to emulate a narrower viewport.

It should also be almost trivial to create a browser extension for this, if it doesn't even exist yet.

[throw_await]

I use firefox's sidebar (vertical tabs) which makes resizing quite natural imo

[rixed]

I use the developer tools right panel for that.