How to disable/remove the profile system

Hello, I need clear instructions for completely disabling/removing Firefox's local profile system from my Firefox installation. I want to use my Mozilla account only, without having separate Firefox profiles such as “Adina” or “Profile 1”. I do not want Firefox to create, display, or require local profiles, profile selectors, or profile-specific icons. My current situation is: * Firefox has created two profiles: “Adina” and “Profile 1”. * My Mozilla account is the account I want to use. * I want my Firefox data to remain associated with my Mozilla account. * I do NOT want to manage separate local Firefox profiles. * I want Firefox to behave as a single browser connected to my Mozilla account, without the new profile system. Please tell me exactly how to disable the profile system completely, if this is possible in the current Firefox version. If it is not possible, please explain why and whether there is an official setting or supported configuration that makes Firefox use only my Mozilla account without these additional profiles. Please do not just tell me how to switch between profiles or set one profile as default. I specifically want to disable/remove the profile system itself. Thank you.