The about:credits page in Firefox
There is a special URL in Firefox. If you type the about:credits in your Firefox, you may see a list of contributors. So many people help Mozilla to improe their/our products. As a paied contributor, my name is on the list, finally. That means my contribution is significant to Mozilla. That's a good news to me.
If you also want to be listed, just fix lots bugs. That's what I did.