suite aux probleme de fonctionnement et suivant une methode citez ailleur dans les commentaire mais sous windowNoté (par Zein Adi, il y a un an):
sous linux :
dans .config/firefoxprofileswitcher/ ajouter un fichier config.json inserer "browser_binary": "/usr/bin/firefox"} sauvegarder .
relancer fx

The **Profile Switcher for Firefox** needs a serious update or to be forked, as the GitHub repository hasn’t been modified in two years. With Chromium-based browsers moving to Manifest V3, the need for Firefox customization becomes even more critical. To keep up, Firefox needs to reintroduce the user-switching feature that many are accustomed to from Chromium-based browsers. Currently, Firefox does support:
1. **Casting to Device** , 2. **Making Individual Web-Based Windowed Browsers (SSBs)**
However, **switching between users** is a crucial feature that Firefox lacks right now. Users are seeking this functionality, and if they can’t find it in Firefox or through third-party solutions, they may turn back to Chromium-based browsers. We should not let YouTube and Chromium outpace Firefox in providing essential features like fast user-based switching.

**firefox-profile-switch-connector.exe**

Doesn't work. Nothing happens when I click on the different profiles.

I love the idea behind this app, but unfortunately it didn't work for me. I'm on Firefox on Fedora. Installed the rpm following the instructions and restarted, but clicking on the name of another profile in the plugin's menu didn't do anything.

Una perdida de tiempo, solo muestra no sirve para cambiar abrir otros perfiles

Only shows the profiles, switching doesn't work.

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
~~~