@hi_mayank
Huh, this has been in firefox for years. It is easy to disable, They are not hiding anything. This type of tracking is usually for developers of the software to understand application usage to improve their UI. I don't like tracking either but I don't think this is like google or facebook monetizing your data. Just turn it off .
I could be wrong so as always Caveat Emptor. 🤔 😉