I'm not sure which ad network you mean - there was an effort to serve ads on the new-tab "tiles" page but that was shut down a little over a year ago: https://b

I'm not sure which ad network you mean - there was an effort to serve ads on the new-tab "tiles" page but that was shut down a little over a year ago: https://blog.mozilla.org/advancingcontent/2015/12/04/advancing-content/ https://blog.mozilla.org/advancingcontent/2015/12/04/advanci...