I keep getting an alert saying that Safari and Google Chrome will no longer be a supporting browser for my OS X Lion 10.7.5. What do I have to do now in order to keep up?

You will need to upgrade to El Capitan (10.11) if you want to use modern versions of the browsers with modern security features.

You will still be able to use these browsers, but Apple an Google have stopped updating them to include newest security.

In order to have the latest versions of these browsers you would need to update your OS to El Capitan.

Otherwise you could the install Firefox browser, which I think is still updatable on Lion. 10.7.5.

You have to download 10.11 via the App store. It should come up on the main page or you can search for it. You just download and install. You should check your programs to make sure they are compatible and update if necessary. Check that your printer is compatible and update if needed. These pages are full of members not checking first that the software they use will work. They end up blaming everyone but themselves.

+1

don't jump off the bridge because your browser told you so. There is no shortage of horror stories on these forums from people who rushed into an upgrade and found their favorite piece of software or scanner or printer no longer functions. There is a burden of research that should be done before you rush into this.

before you do ANYTHING back up your drive NOW. In the event you wreck your digital lifestyle you can roll back to an instance where things worked.

Use Time Machine to back up or restore your Mac - Apple Support

Two comments:

1. Jimmy and Eau give great advice.

2. What is this "FREE" deal and credit card that you ask about? Please slow down and write clear, complete, logical questions.

Grant

Assuming that you are downloading El Capitan (10.11) from the app store, in the dialog for the credit card there should also be a button labelled 'None'. Click that button and you shouldn't be asked again about a credit/bank card.