How do I get rid of web.longfishtuna.net? It keeps opening a new tab asking me to install a new media player. Yesterday, I ran my antivirus software (Norton) with no luck. I started my computer in safe mode, deleted temporary files and then ran malwarebytes. It found/removed 5 infected files. But, this morning the web.longfishtuna.net popped up again! It is very frustrationg. Please help!