Cannot register at faucetpay due to Firefox browser hacking

On moneymaking forums, faucetpay is a popular crypto microwallet for receiving crypto payments .
Since most of the moneymaking websites which were listed in 2015-2016 are not existing in 2021, the domain investor is trying to find some reliable websites
So she tried to register at Faucetpay, where the user has to specify the user name
Yet for every name that she is inputting using a Firefox browser in Panaji, goa, she is getting a message, user name is already taken
The Firefox browser is hacked to prevent her from making any money, registering at the website.