Chrome and Firefox users that install OS X Yosemite are receiving notifications suggesting they give Safari a try, according to multiple reports on Twitter (via Tom Davenport). After upgrading to Yosemite, Apple is sending popups that read "Try the new Safari. Fast, energy efficient, and with a beautiful new design."
The interactive notification comes with "Later" and "Try Now" options, and it seems that users may be receiving the messages when opening Chrome or Firefox for the first time after installing the operating system update.
Apple made several updates to Safari in OS X Yosemite, including adding a new "blazing-fast [Nitro] JavaScript engine" and energy saving technologies to make Safari both faster and more energy efficient. According to Apple, Safari is significantly faster than both Firefox and Chrome, a claim that was tested by CNET and received mixed results.
Safari did better on Apple's JetStream and Speedometer benchmarks that measure JavaScript performance, and it also outperformed Chrome and Firefox using JSBench, but CNET's testing saw it perform worse on Google's Octane benchmark and Mozilla's Kraken benchmark.
The new Safari 8 did demonstrate significant improvements over Safari 7, scoring 81 percent better on JetStream and 89 percent better on Speedometer, suggesting Apple has indeed made some major under-the-hood improvements to the browser.
Along with speed improvements, Safari gained some new security features, including DuckDuckGo support and isolated Private Browsing windows that allow users to have a non-private browsing window open at the same time as a private browsing window. The browser also continues to offer third-party cookie blocking, malware monitoring, and sandboxing for websites.
Safari received a complete visual overhaul in OS X Yosemite, introducing a new streamlined look that does away with the favorites bar by default and a revamped Tab View that displays all open tabs in a tiled arrangement, much like iOS.
Safari has also benefitted from Handoff, a Continuity feature that allows users to open a webpage on a Mac and seamlessly continue browsing on an iOS device (or vice versa), and the browser natively supports Netflix, providing two extra hours of battery life when watching movies or TV shows.
Built into OS X Yosemite, Safari 8 is automatically installed alongside the new operating system. Released on October 16, Yosemite is estimated to be installed on approximately 20 percent of Macs at this point in time.