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As if it wasn't bad enough that they want me to use a random internet service to add a keyboard to a usb wifi receiver, they have the balls to put this for Firefox users. I clicked out of pure curiosity, as I'm not even remotely interested in involving a corporate internet service in getting my keyboard connected to my computer. This is the message you get now on Logi Options software if you have a Unifying Receiver: 
For the curious: https://logiwebconnect.com
EDIT: some people on the thread have brought up that the error message being displayed for Firefox users is due to the WebUSB API not being implemented by Firefox due to security concerns. This still does not justify having to use a web app to plug peripherals to a PC.
Oh for fucks sake. It's getting to the point where this needs legislative intervention to put an end to this tomfuckery.
Every day, I'm inching closer and closer to pulling the trigger on moving to Linux once and for all.
Just do it. You can use the Fedora or Mint installer to make a dual boot and keep your windows install.