Add a buglist for people in the Firefox group.

Benjamin, please let me know if there's anything you'ld like me to add or change to make this suitable for merging.

Thanks!

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Hrm. In theory I don't mind Firefox team trying different language. In that particular case I'm just a little unhappy that it assumes beginning-of-the-day. I wonder if there's a version that makes the daily-prompting explicit... or maybe we could do something stupidly complex like vary the language by the time of day...

Do whatever for now, and I'll play with followup.