We are using Google Analytics for our portal. In the language metric we see fr-fr and fr. What's the difference between fr-fr and fr in Google Analytics?
Essentially, 'fr' is French (as a language setting in the browser as chosen by the user) and 'fr-fr' mean French in France (paired with the language setting).
Like 'en-us' means English from the US and 'en-gb' means English from the UK.
Hope that helps.