After installing the add-on, the add-on requests me to 'complete the setup'. I walk through the questionnaire and end up with a DEB file that I need to install, so I do that. After restarting firefox, the issue persists. I installed firefox using apt and not snap.

The version of 119.
My OS is: Ubuntu 23.10 x86_64
My desktop Environment is vanilla Ubuntu: GNOME 45.0