All of a sudden my LiberKey, for some reason, thinks I'm French or that we are in France. The 'accept cookies' warning it throws up is in French, by default it takes me to the French version of the forum, and it's installing the French version of some apps to my LiberKey.

I'm actually in the U.S. and speak English. My browser is set to US English, as is my machine.

What's causing this and how can I fix it?

Some apps or services, like LiberKey, may use geolocation (based on your IP address) to automatically determine language preferences. If your IP address is mistakenly located in France, that could cause it to display content in French. iberKey might have its own internal settings or preferences for language, and they may be set to French by default. While your browser is set to US English, it's worth verifying that your browser's language settings are indeed influencing how LiberKey behaves.