Add to Chrome.

Click 'Add extension' above.

The installation process should take less than a minute.

Next, you'll Create an Account.

Add to Firefox

Click 'Allow' then 'Install' above.

The installation process takes less than a minute.

Next, you'll Create an Account.

Did the installation window disappear?

What is a YubiKey and how do I use it?

A YubiKey is a key-sized device that you can plug into your computer's USB slot to provide another layer of security when accessing your LastPass Account. YubiKeys are a secure, easy to use, two-factor authentication device that are immune from replay-attacks, man-in-the-middle attacks, and a host of other threat vectors.

YubiKey support is a Premium feature, and the device must be purchased through Yubico.com for $25.
 
Once you have purchased and received your YubiKey, you can enable the device and manage your preferences by launching your LastPass Icon > My LastPass Vault > Account Settings > Multifactor Options > Yubikey > Edit:
 
Learn more here: https://lastpass.com/yubico/
Still Having Trouble?
Look for answers in our vibrant customer-to-customer community help forums.
Forums
View your account information and view the status of previously submitted support tickets.
View Tickets
Submit a support ticket and we'll get back to you as soon as we can!
New Ticket

Please review these answers to your question:

Still Having Trouble?
Look for answers in our vibrant customer-to-customer community help forums.
Forums
View your account information and view the status of previously submitted support tickets.
View Tickets
Submit a support ticket and we'll get back to you as soon as we can!
New Ticket

Browse through our FAQs: