Sign up for Dex using your Google Account or Email
Download and install the Dex for Chrome extension
You should see this if the installation was successful:
Once you have installed the Dex Extension, click on the blue Dex icon at the top right to open the Dex Extension Panel. From there, simply click the Import Contacts button to start the process.
The Dex extension will scroll through your friends list and birthdays to automatically add all of this information to your Dex Dashboard. All of your information is completely private and secure. Only you have access to your own contacts.
Learn more about birthdays
Use the merge and fix tool of Dex to help clean up your contacts and remove duplicate entries.