Two days ago my Firefox download box started showing AppFile_qqasdc.exe as containing a virus. I delete it. it returns whenever i restart Firefox. I cannot find the file on my hard drive, in the registry or anywhere on my system. A copy of the download link is: https://uc99b71eb166e68560fbea78a639.dl.dropboxusercontent.com/cd/0/get/CEEeZrifjbVbW9F8XSpBve3ZrUmsCEGzqdveXPCVVo8X0RUtX3_2tRM0GZwU90zqeB-FdnoJ-81wQly5V6_-vngWuJ4aqSwGipP3kqspH5r28AExkI6IuGknXY6u9s_IETf94ziofKINriQR3LrUFX-i/file?dl=1# HELP!