Explore how Firefox, Chromium and Safari work, comparing browser engines, JavaScript engines, performance, privacy, compatibility and key features.

For those interested in getting a (legal) glimpse of the next Safari beta, the WebCore and JSCore frameworks have been updated. There's a journal entry over on Slashdot that tells you how to use these ...

The iOS 18.1.1, iPadOS 18.1.1, and macOS Sequoia 15.1.1 updates that Apple released today address JavaScriptCore and WebKit vulnerabilities that Apple says have been actively exploited on some devices ...

JavaScriptCore, the JavaScript engine for Apple’s WebKit browser engine, has been upgraded with a new bytecode format that improves memory efficiency and type safety. The goal of the format, detailed ...

Facepalm: Google researchers have discovered a couple of zero-day vulnerabilities in Apple's WebKit components. The flaws have already been patched, but Cupertino strongly urges users to update their ...

Apple's WebKit JavaScriptCore is now a "triple tier virtual machine," offering the potential for 2-2.5 times faster JavaScript performance in Safari. Recent changes in Apple's WebKit open source ...

"Apple is pleased to announce the open source release of the new JavaScriptCore framework, based on the kjs JavaScript engine from KDE. JavaScriptCore is a private ...