Apple has released Safari 12 for macOS Sierra and macOS High Sierra. It’s available for download at the Mac App Store.
According to Apple, Safari 12 offers “improvements to privacy, compatibility, and security.” Specifically, it:
° Adds the ability to view website icons in tabs;
° Automatically suggested and fills in a strong, unique password when creating an account or changing a password;
° Flags reused passwords in Safari preferences;
° Adds support for allowing or blocking pop-ups on specific websites;
° Prevents embedded content and social media buttons from tracking cross-site browsing without permission;
° Suppresses ad retargeting by reducing advertisers’ ability to identify Mac devices uniquely;
° Automatically turns off Safari extensions that negatively impact browsing performance;
° Improves security by only supporting legacy Safari Extensions that have been reviewed by Apple;
° Improves security by discontinuing support for most NPAPI plug-ins.