First of all, avoid giving your mobile number on instagram. It is a very unique identity to identify you. Firefox private browsing mode alone won’t help you but browser/profile isolation can be a better solution.
keep in mind that your privacy is not only in your control but other people who saved your number on their phone with real name, other services you used before or the isp iself can sell this data to data brokers. If you used whatsapp with this same number, then that’s too a reason behind this.
Furthermore, device fingerprinting, browser fingerprinting, network fingerprinting, etc. pose significant drawbacks in privacy on platforms like instagram.
First of all, avoid giving your mobile number on instagram. It is a very unique identity to identify you. Firefox private browsing mode alone won’t help you but browser/profile isolation can be a better solution.
keep in mind that your privacy is not only in your control but other people who saved your number on their phone with real name, other services you used before or the isp iself can sell this data to data brokers. If you used whatsapp with this same number, then that’s too a reason behind this.
Furthermore, device fingerprinting, browser fingerprinting, network fingerprinting, etc. pose significant drawbacks in privacy on platforms like instagram.