Request expansion of introduction to special page LanguageStats
I wouldn't have raised the issue if you hadn't asked. There is now a Welsh version of the latest Firefox version 3.whatever, so I agree that the particular issue above is probably irrelevant. However, the Welsh version of Firefox wasn't always the most up-to-date; the latest Welsh version used to lag quite a way behind the latest English releases, a situation which I assume applied to other languages as well.
Anyway, if we assume that a tooltip can be of any length, then is it possible and efficient to add tooltips to the column headers?
Yeah, can be done. Please make a proposal for the texts; they cannot contain links or HTML entities. If possible, they shouldn't be translatewiki.net centric, but generic.