I downloaded and installed Firefox, seemed to be working fine. Turned off my MacBook, next time I tried to use Firefox, it wouldn't connect to the Internet. I had Safari installed in my MacBook also, tried to connect to the Internet with it and wouldn't work either. I then uninstalled Firefox (or rather moved the program to the thrash bin), and still Safari would not connect to my Internet wireless broadband signal. Help!!!! What is wrong with Safari and/or with Firefox? The Internet signal is working fine since the other computer in the apartment is able to connect without any problems whatsoever. I tried running the network diagnosis and could not find any errors. Is there a way I can go back to the original settings before installing Firefox?? Please help!