The link to the software download for Directv everywhere does not work in Comodo. (19.1). After several conversations with directv, their reply is that the download link works in chrome v19 but not in any version of dragon. I had to to install chrome to install the software. Here is the page in question: http://www.directv.com/entertainment/player
Try disabling Do not allow websites to know where you came from (suppress HTTP Referrer header) if you have it enabled.
Menu, Settings, Show advanced settings, under Privacy.