Add to Chrome.
Click 'Add extension' above.
The installation process should take less than a minute.
Next, you'll Create an Account.
LastPass isn't working with Rockmelt?
Unfortunately Rockmelt is working on compatibility with the latest updates to Chrome, so until then only LastPass version 1.90.0 is compatible with the browser: https://lastpass.com/releases/lpchrome1.90.crx