If you don't log in into websites, I don't see why you would leave yourself exposed and very easily hacked with Firefox or private browsing if there's Tor.
Private browsing is NOT secure. It's just a shortcut to avoid clearing your history manually. ANYONE can see who you are, and what sites you visit with easy-to-use tools that are available online for free.
Security is not an absolute. The best you can do is talk about whether something addresses a particular threat model.
There are different tradeoffs to Tor. A big downside is that unencrypted traffic is now easier for intermediaries to read and even change, because of how exit nodes work.
If you don't log in into websites, I don't see why you would leave yourself exposed and very easily hacked with Firefox or private browsing if there's Tor.
Private browsing is NOT secure. It's just a shortcut to avoid clearing your history manually. ANYONE can see who you are, and what sites you visit with easy-to-use tools that are available online for free.