Click the "File" menu at the top-left corner of the Opera Web browser window. Then click "Synchronize Opera" and "Enable Synchronization."
Click "Next" in the welcome window.
Create an Opera account by typing a user name, password and email address into the appropriate boxes and clicking "Next." If you already have an Opera account, click "I Already Have an Account," type in your user name and password, and click "Next."
Configure synchronization options by clicking the appropriate checkboxes. By default, all supported data is synchronized.
Click "Finish."
Sync Opera bookmarks among any number of Opera browsers by enabling synchronization and providing your account details on each computer.