Surprisingly difficult to understand what this thing is or does. Seems like you can "donate" your browsing behavior to science for doing studies in a kinda anonymous privacy protecting way.
Social science is a hard science, in the sense that it is very difficult to comprehend the technical details without adequate training.
> Seems like you can “donate” your browsing behavior to science
More than that, you can donate the following, as well:
> Your Rally demographics and an optional short survey
For the COVID study, for example.
https://rally.mozilla.org/current-studies/political-and-covi...