Not working

[ivanjovanovic2003]

I have installed and later reinstalled the software, but when I click on the icon it just says "Setup Incomplete!" and shows the process again.

[OceanNuclear]

Same issue here, this is what I get:

(Don't worry about the fading-in background, that's just a screenshotting bug)

Which leads to the Setup page:

Which I have already installed:

[10:13:02]~/.../firefox/common/ ls firefoxprofileswitcher-install/ff-pswitch-connector 
firefoxprofileswitcher-install/ff-pswitch-connector
[10:13:10]~/.../firefox/common/ file firefoxprofileswitcher-install/ff-pswitch-connector 
firefoxprofileswitcher-install/ff-pswitch-connector: ELF 64-bit LSB pie executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 3.2.0, BuildID[sha1]=f51719b737067a0abcdb68a3a4417d23192a8d6d, stripped
[10:13:14]~/.../firefox/common/ ls .mozilla/native-messaging-hosts/
ax.nd.profile_switcher_ff.json
[10:13:44]~/.../firefox/common/ cat .mozilla/native-messaging-hosts/ax.nd.profile_switcher_ff.json 

{
    "allowed_extensions": [
        "profile-switcher-ff@nd.ax"
    ],
    "description": "Profile Switcher for Firefox",
    "name": "ax.nd.profile_switcher_ff",
    "path": "/home/ocean/snap/firefox/common/firefoxprofileswitcher-install/ff-pswitch-connector",
    "type": "stdio"
}

Operating system details

[10:13:51]~/.../firefox/common/ uname -r
6.8.0-71-generic

Ubuntu 24.04.2 LTS

[OceanNuclear]

I have found a workaround for this, by enabling profiles in about:preferences (and in about:config if that has been previously disabled) in the newest version of firefox. It took a lot of work to set-up a new profile all over again, but in the end it's done.

Happy for this issue to be closed, unless OP @ivanjovanovic2003 objects to my workaround.