It would be helpful to have a built in one click button that can be used to automatically report a website that isn't compatible with Firefox to Mozilla and/or Webcompat
Thanks for the suggestion, @ADGrimes. We already do have an option to report site issues from directly inside Firefox - but only for pre-release versions.
If you're using Firefox on Desktop, and you're using the Nightly, Developer Edition, or Beta version, you can find a "Report site issue..." item in the Three-Bar-Menu > Help. Likewise, the Firefox for Android Beta and Nightly editions have the same feature, in the three-dots menu, as "Report Site Issue..."
The Web Compatibility team is relatively small, and we want to be able to look at every single report filed. This wouldn't be possible if we get flooded with a lot of reports. Additionally, the team is a bit limited in what languages we can handle, and the entire report flow is currently only available in English. Those two factors result in us not being comfortable enabling this feature in the Release versions, as the audience there is much larger and much more diverse.
We're always re-evaluating our approach and our processes, and there might be a future where this is enabled for everyone. For now, we don't have concrete plans for that, though. You are, of course, always welcome to manually report issues directly on webcompat.com!
Help needs an item for listing a broken website that no longer works.
Ask the user the last time they remember it working; if they remember.
Collect statistics. Then you can realize when you implement a security policy change how many sites you are breaking besides doing many possible actions to handle such situations rather than simply ignore the problems you may not even realize you created! At least it appears like you care even if you do nothing with the information. You must have the information before you can invent ways to use it.
I know people who left Firefox because you broke sites important to them which still worked in Chrome. I've had it happen to me but I keep coming back for some reason despite the many things to irritate power users who influence a large number of users. I single-handedly keep Firefox in the computer labs of a university and encourage students but some days I question why I bother...