Skip to main content

Apple ships Safari Technology Preview 58 w/ favicons & Safari 12 features for High Sierra & Mojave

As WWDC continues, Apple today has released Safari Technology Preview 58. This is the experimental browser that the company first introduced in 2016 as a way for developers to test upcoming Safari features.

Today’s Preview 58 is available on macOS 10.14 Mojave, as well as macOS High Sierra, and includes Safari 12 enhancements…

Safari Technology Preview 58 brings the new Safari 12 features Apple showed off on Monday. This includes icons in tabs, improved intelligent tracking prevention, automatic strong passwords, and more.

  • Icons in Tabs. Enable in Preferences to identify tabs visually with website icons.
  • Automatic Strong Passwords. Safari now automatically generates strong, unique passwords when signing up for accounts or changing passwords on websites.
  • Intelligent Tracking Prevention: In Safari, enhanced Intelligent Tracking Prevention helps block social media “Like” or “Share” buttons and comment widgets from tracking users without permission, and more.

What today’s release means is that users and developers on macOS High Sierra can now test the new Safari 12 features on macOS without having to make the jump to the macOS 10.14 Mojave beta.

The Safari Technology Preview can be downloaded for High Sierra and Mojave from Apple’s developer website, no developer account required.

Read more about the improvements in macOS 10.14 Mojave in our full announcement coverage here.

Full release notes:

Release 58

This release covers the same revisions of WebKit from Safari Technology Preview 57, but includes new Safari and WebKit features that will be present in Safari 12. The following Safari 12 features are new to Safari Technology Preview 58:

Icons in Tabs. You can enable showing website icons in tabs in Safari’s Tabs preferences.

Improved Intelligent Tracking Prevention. You can learn more about improvements to Intelligent Tracking Prevention in Intelligent Tracking Prevention 2.0.

Automatic Strong Passwords. Safari automatically generates strong, unique passwords when signing up for accounts or changing passwords on websites. New to Safari 12 and Safari Technology Preview 58, generated passwords can be customized using the passwordrules attribute. See Apple’s Password Rules Validation Tool for more information.

Many more WebKit features in Safari 12 are present in this release of Safari Technology Preview and have been in past releases. You can read more about these changes and many others in What’s New in Safari 12.

Subscribe to 9to5Mac on YouTube for more Apple news:

FTC: We use income earning auto affiliate links. More.

You’re reading 9to5Mac — experts who break news about Apple and its surrounding ecosystem, day after day. Be sure to check out our homepage for all the latest news, and follow 9to5Mac on Twitter, Facebook, and LinkedIn to stay in the loop. Don’t know where to start? Check out our exclusive stories, reviews, how-tos, and subscribe to our YouTube channel



Avatar for Chance Miller Chance Miller

Chance is an editor for the entire 9to5 network and covers the latest Apple news for 9to5Mac.

Tips, questions, typos to