Data is decrypted locally within the extension.

The MEGA extension is a browser add-on designed to integrate directly with the MEGA web application. It is not merely a shortcut; it serves as a bridge that enhances how your browser interacts with MEGA’s servers. Its primary purposes are to: file transfers.

Click on the official MEGA extension from the search results. On the extension details page, click the blue button. Step 4: Grant Permissions