[Daril]

"When you upload or input information through Firefox, you hereby grant us a nonexclusive, royalty-free, worldwide license to use that information to help you navigate, experience, and interact with online content as you indicate with your use of Firefox."

Why should I give them the right to read the input I type or the upload I submit through Firefox (for example to a private web application) and use it to help me to do what exactly ?

They want collect the data we insert (private and personal) and sell them to the advertisers or to AI engines.