Input[1] was a service for collecting feedback about Mozilla products.
It was decommissioned in January and replaced with a redirect to an
externally-run survey service.
I just noticed the module for Input[2] was still around, and plan on
marking it as deprecated since it's not really relevant anymore. I'll be
doing this next Wednesday the 15th if no one objects.
Thanks!
- Mike Kelly
[1]
https://wiki.mozilla.org/Firefox/Input
[2]
https://wiki.mozilla.org/Modules/Mozilla_Websites#Input