I finally found out that even though I have Adobe's latest download there was no flashplayer for Mozilla Firefox to use for video's.?

I downloaded Adobe flashplayer but now have a alert box appearing that asks for permission to let I.YING.COM store information on my computer in the middle of the video. I click decline but the box doesn't disappear and in about 30 seconds I get a not responding alert and have to start the task manager to shut down Mozilla to get out of it. When I reopen Mozilla I go to a different article and everything works fine until another video using flashplayer starts the whole thing over again. I have no trouble using internet explorer but have always preferred Mozilla Firefox. Anybody have a clue what's going on here? Thanks!