I use Firefox and Thunderbird for Windows and Android, they are my favorites, now I have been struggling with problems in the Firefox browser for Windows 7 with the Logitech G560 sound. Firefox is the only browser that doesn't work with Logitech G560, all of the competition works, I've read articles with the same problem on Logitech that can't solve the problem, because the problem is the Firefox browser, only this one doesn't produce sound from YouTube, Spotify and more ... Test to detect the problem and resolve it by updating Firefox, don't come up with experimental solutions because they don't exist. I'm waiting for help, thank you.