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First, navigate to the LastPass downloads page. Choose the version you would like to use: Mac, Windows, Linux, or mobile.
Once you have downloaded the version you would like to use, you may receive a message like the one below. Choose to save the file.
This will launch the LastPass wizard. Follow the instructions in the wizard to install their plug-in for your browser.
At the end of the wizard, you will be prompted to create a LastPass account. Enter an email account, password, and password prompt. There is no way to recover the master password, so be sure to make is something memorable.
After clicking next, you will be prompted to reenter your password.
Re-enter the password and save. Your account has been created and the LastPass website will open in your browser. There, you can log in and enter your information.
The LastPass plugin which you installed in the wizard will also give you a prompt every time you enter log-in credentials in a website. You can choose to save the username and password or not. If you choose to save the credentials, this confirmation window will open.