1. Check that you are using Google chrome. You can download it here.
2. If you already have chrome browser, press here to install the plugin.
3. Once installed, configure the plugin and add your "USERNAME" and your "USER KEY". You can find this in your 'settings' and 'connections'. If this is your first time, you will have to create it.
4. Copy the key, and there you are. Press kcy icon to start sharing links.