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)

This extension does not work for me! I believe I installed the required software after being prompted. The extension displays my profiles, but clicking on another profile does not switch me to that profile.

It doesn't let me switch profiles even with the workaround setting turned on.

Die App lässt sich installieren, aber dann sehe ich das Icon nicht, mit dem ich zwischen Pofilen wechseln kann.

Looks like it's no longer being maintained.
Used to work flawless.
If updated, please reply to the review.

This no longer works post v124 I believe. Looks like it's no longer being maintained

stopped working

IT WAS AMAZING, until it stopped working :(

Broken

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!

I believe this add on has been exploited. install at your own risk.

The reason I believe this is it requested that I updated the switcher exe file and yet there have been no code changes to it recently

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!

usually is very helpful, but it just randomly stopped working for no reason???? please explain.

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.

Does not work. You can click profiles but it won't switch to them or load them. Nothing happens.