The services are Firefox but also optional services you can opt-in to (like account sync). It's about giving feedback to them under the subheading "Your Feedback and Suggestions." Generalizing from that to "all your ideas anywhere on the internet" is bananas. They also explicitly say in the previous clause that they don't own that content:
It also includes a nonexclusive, royalty-free, worldwide license for the purpose of doing as you request with the content you input in Firefox. This does not give Mozilla any ownership in that content.
I slept through this one in Vancouver. I mostly just heard the last one. Didn't even know there'd been an earthquake til someone texted me 🤷