The 'New York 2010' singer, who is promoting the BT Digital Music Awards, said that it was unlikely she would be offered a role, but that she believed she would be a good addition to the panel.
Faith has previously announced her desire to join the show on Twitter, writing: "I want to guest judge The X Factor!!!! Pleeeeeeeeeease Mr Cowell please!"
She explained: "I've tweeted that I'd like to be a guest judge on The X Factor, which I don't think is likely, but I just think it would be nice for them to have someone who's got something interesting to say on there."
Speaking about the music industry's attitude to digital and online technology, Faith added: "I think initially, the record industry struggled a lot with digital media because there a lot of aspects to it that can potentially destroy our industry.
"But, in some ways, what's happening now is people are realising that we can use it to our advantage."