French guy here. This article only speak about employees in american company getting fired about some data shared on the web. But I would be curious to know what happened to people who faced the same situation working in continental european companies. It would be surprising if people would lost their jobs so easily. Either because I think it's culturally better accepted for private people (I mean not public figures)…
Based on my (admittedly very limited) experience with French culture, this is definitely the most important difference.
America has become extremely politically correct. People in France are much more relaxed about saying things Americans might construe as offensive. In particular, Americans tend to be much more wary of speaking about perceived victim groups (certain racial groups, homosexuals, etc.).