I'm wondering how I can make all the Top Sites use full icons for the thumbnails rather than a screenshot of the webpage and a little icon in the bottom right corner? If you aren't sure what I mean, set http://YouTube.com as a Top Site and http://YouTube.com/Home as another Top Site. I want all of my Top Sites to be like http://YouTube.com is. If there is no way/no easy way to do this, is possible to set custom thumbnails for each site myself using my own images? Also, I am aware of this page: https://support.mozilla.org/en-US/kb/about-new-tab-page and this page: https://support.mozilla.org/en-US/kb/customize-new-tab-page As far as I can tell, they don't answer my question. Thank you for any help