Insanely useful after properly setting it up.

When the add-on was working, it was ★★★★★. Now it no longer switches when I select a profile. I have to deal with it by starting with "firefox.exe -p" like in the old days.
I then switched to a derivative browser with built-in profile switching.

zero issues so far (using floorp)

Great addon.

Workarounds (including Linux) to fix the v124.0 issue: https://github.com/null-dev/firefox-profile-switcher/issues/106#issuecomment-2008582801

The solution from olivrrstray is worked!

Thanks @Shivam, your solution fixed the issue of this add-ons in MacOS :)
~~~ Terminal
> echo '{"browser_binary": "/Applications/Firefox.app/Contents/MacOS/firefox"}' >~/Library/Preferences/ax.nd.nulldev.FirefoxProfileSwitcher/config.json
~~~

Fix in MacOS: "echo '{"browser_binary": "/Applications/Firefox.app/Contents/MacOS/firefox"}' >~/Library/Preferences/ax.nd.nulldev.FirefoxProfileSwitcher/config.json"

Worked great, broke, but then followed Zein Adi/olivrrstray's instructions about creating a config.json and now working again. Thanks!

Is your extension broken? Go to this review: https://addons.mozilla.org/en-US/firefox/addon/profile-switcher/reviews/2057565/

Stopped working but followed @olivrrstray instructions below and it is working again. Thank you.

Currently down, but olivrrstray in the reviews has a fix for windows that was easy to follow, and when working properly it's fantastic, very easy to use and i love having multiple profiles available

GOOD

Took a minute to setup, but once done its an awesome experience! btw im on a Macbook Pro 2019 Intel I7

Works flawlessly on m2 pro macbook running Sonoma, honestly insane that this hasn't been implemented natively yet

Unclear and confusing in Fedora