The Firefox Nightly beta makes these calls run faster than non-in-lined JavaScript-to-JavaScript function calls. Calls have been optimized from JavaScript to WebAssembly and vice versa.

Although Chrome's performance beats the current stable version of Firefox, benchmarks show that Mozilla's next-generation JavaScript engine actually outperforms V8.

Mozilla has just rolled out OdinMonkey, a new module for Firefox's JavaScript engine that promises to speed up JavaScript execution beyond your wildest dreams. If you were drawn to Chrome because ...

The introduction of a new module to Firefox 9's JavaScript engine will speed up its surfing performance by some margin.

JSTerm, an experimental Firefox add-on for JavaScript developers, has hit version 2.0. The JSTerm Firefox add-on — not to be confused with the HTML5 Telnet Emulator by the same name — adds a ...

Firefox's new Scratchpad is different from Firefox's other JavaScript dev tools in that it is just, as the Mozilla Blog puts it, "a text editor that knows how to run JavaScript." Scratchpad gets ...

The addition of some rather nice Pythonic sugar in JavaScript 1.7 and 1.8 is a great start, and the recent emergence of consensus in the standards community on the future of ECMAScript lifts some ...

Firefox 3.5.1 fixes a JavaScript vulnerability in version 3.5 that exposed users to so-called drive-by attacks.

Mozilla on Wednesday patched a single critical security vulnerability in the JavaScript engine of Firefox, updating the open-source browser to Version 2.0.0.14. According to the associated ...

The next version, Firefox 5, is due June 21, according to release manager Christian Legnitto. But don't expect the JavaScript and graphics changes to arrive that soon.

Andreas Gal, an engineer who helped speed up the Firefox browser at a crucial moment and then helped launch the Firefox OS project, has been promoted to Mozilla's new chief technology officer.