Firefox's new feature provides you with a fake phone number in order to reduce spam

Firefox’s new feature provides you with a fake phone number in order to reduce spam

The idea is that giving up this other phone number would make it easy to stop future spam phone calls or messages. You have the option of blocking all calls or texts received to your relay number or just specified people. It also allows you to keep your “actual” phone number hidden, which is important if you use it to receive sensitive information like two-step verification codes by SMS.