Is there a list of all the arewe* sites Mozilla runs? I know of arewefastyet[0], areweslimyet[1] and arewee10syet[2]. Are there others?

[0] http://arewefastyet.com/

[1] https://areweslimyet.com/

[2] http://arewee10syet.com/

There's also http://www.areweplayingyet.org/ which appears to be by SoundCloud, not Mozilla.

Yes, it is Mozilla, Mozilla makes Rust.

No, it isn't Mozilla, it's created and maintained by a member of the community.

OH, you mean the webpage.

There is http://arewemetayet.com/ but it is probably incomplete.

There also is/was an arewe* site for Firefox installer size by releases, but I can't remember the URL.

arewesmallyet.com, it seems to be expired and grabbed by domain squatters. And (what is probably related) Firefox installer size is now much more than 5Mb it was then :)

Also: https://github.com/ttaubert/arewesmallyet

for fun bug tracking in the web audio tools, arewedubstepyet[0].

[0]http://arewedubstepyet.com/