[mkl]

You may have missed Mozilla's update: https://blog.mozilla.org/en/products/firefox/update-on-terms..., discussed in https://news.ycombinator.com/item?id=43213612

I don't think trust in Firefox should be gone.

[torstenvl]

There is nothing meaningful in this "update."

If anything, it's worse, in that they EXPLICITLY admit that they are getting kickbacks—“'monetary' or 'other valuable consideration'”—for providing your user information.