firefox-profile-switcher-connector VS containerise

In the meantime, you can install the Profile Switcher extension (which requires the associated native connector), which should function as you want.

Have you tried the Profile Switcher for Firefox add-on? It works just like the profile switcher on Chrome.

- Add-on: https://addons.mozilla.org/en-US/firefox/addon/profile-switc...

- Connector (required for add-on): https://github.com/null-dev/firefox-profile-switcher-connect...

- Source: https://github.com/null-dev/firefox-profile-switcher

The free and open source Firefox Profile Switcher extension, paired with the connector app, adds a browser profile menu to Firefox similar to the one on Chrome.

https://addons.mozilla.org/en-CA/firefox/addon/profile-switc...

https://github.com/null-dev/firefox-profile-switcher-connect...

It will likely start working on the Mac soon - I see binaries built for macOS in the releases section here: https://github.com/null-dev/firefox-profile-switcher-connector/releases/tag/v0.0.5

https://github.com/kintesh/containerise/issues/30

One more extension related to container management - https://github.com/kintesh/containerise

This lets you set regex/wildcard to contain subdomain or redirect happy sites into a single container

I use Containerise[0] (not affiliated) exactly for that purpose but I agree, this should really be included in the official plugin.

[0]: https://github.com/kintesh/containerise

Thank you for your suggestions. I've been considering what to do about my Firefox setup for some time (switching to ESR vs one of the forks, which I have to research first). Thing is, I'm using a heavily-customized profile with lots of extensions, Violentmonkey [1] userscripts, containers (including Containerise [2], and Temporary Containers [3]), and a custom user.js (based on [4]), so I should also revisit the settings for all of these at the same time as it's been a while since I last did so. It's all on my to-do list but as the current setup works well, there's always something more urgent to do instead.

1. https://violentmonkey.github.io/

2. https://github.com/kintesh/containerise

3. https://github.com/stoically/temporary-containers

4. https://github.com/pyllyukko/user.js

The LTSC suggestion is also good. I'm already using a heavily-debloated LTSC with lots of unnecessary packages removed (including the hidden ones, which are not supposed to be officially removable), and all kinds of customizations for privacy, security, performance, and convenience. While I'm satisfied with my setup (automated with custom scripts I've been maintaining since Windows 8), the number of hoops one has to go through to have their computer do what the user wants and nothing else, or a "User-Agent" that gives actual agency to the user these days is truly astonishing, and makes the goal unattainable for most people.

If you've found something you believe is broken, post on their issue tracker...

I think Containerise will do what you want. To use it in the way you describe, don't set up manual rules, but set the Default Container under the addon options using the {domain} or {fqdn} placeholders. Then a new container is created with a name based on the domain, and all other visits to the same domain share that container.