[dano]

The Firefox documentation says to Enable Containers through General Settings -> Tabs [1] but there is no such checkbox [2]. Going into about:config and changing privacy.userContext.enabled and privacy.userContext.ui.enabled to true [3] enables the checkbox in the settings page [4]. This is Firefox Version 116.0.3 under Ubuntu.

I use Chrome and Firefox interchangeably so I don't have a dog in this fight. Containers aka Personalities needs to be made a first class feature in Firefox and not require the above steps to make it useful to the less tech savy end user.

1. https://support.mozilla.org/en-US/kb/how-use-firefox-contain... 2. https://imgur.com/a/mX1P25J 3. https://imgur.com/a/fNyRnLk 4. https://imgur.com/a/GjxJwIP

[heftig]

Yeah, they're enabled by default only on Nightly. Apparently they're still considered "experimental".

Officially, you enable them through the MAC extension, which also adds some more UI.

https://addons.mozilla.org/en-US/firefox/addon/multi-account...

Other extensions (like Tree Style Tab) can also cause container tabs to be enabled.

[BeefWellington]

The checkbox is indeed there for me in 111.x.

Perhaps the documentation needs an update for the latest version if it's been moved elsewhere.

Edit: I just checked in 116; it appears to just be always enabled now.