I recently downloaded the ebay app onto my Android phone. Since doing so, when I go to my ebay account on my PC, I cannot put items in My Cart nor can I BUY NOW. The selector arrow does not change to a Hand icon. Everything works as it should on my phone. Contacted ebay support which attempted to correct by having me clear browsing history with no success. They informed me that it was a problem with my browser (Firefox). Any info or suggestions would be well appreciated.