If you would like to be able to unlock your vault in a different browser or device, or simply to have a file backup of your vault, you can export and download the .JSON file of your encrypted vault.
To do this, when logged into your vault, go to the top right of the screen and click the cog icon. Then under "Actions" choose "EXPORT. Download your encrypted vault". Keep this file and passphrase safe and secured.
You can import your vault on a new browser or device here - https://worldmobiletoken.com/vault/import