What is Smart Zoom?
The Magic Mouse has the ability to zoom in on pages simply by double tapping on the mouse. This function is known as “Smart Zoom”.
Issues with Smart Zoom
Some users have experienced issues with the Smart Zoom function after updating to the Mavericks OS X. Please note that by default the Smart Zoom function does not work with Google Chrome, Firefox, and many other browsers. You will need to install certain plug ins to enable the feature for these browsers. The Smart Zoom function works with the Safari Browser. Users experiencing issues with the function and are using Safari should verify that the option is enabled.
Enable Smart Zoom on the Magic Mouse
1. Go to your Launchpad, click on “System Preferences”, and open “Mouse”
2. Enable “Smart zoom”