Mozilla released a third beta of Firefox 3.6 on Wednesday, adding stability and performance features, and said it hopes to lock down the code soon for its first release candidate.

The new beta, for Windows, Mac, and Linux, includes a component directory lockdown that makes it harder for other software to meddle with the open-source browser's state by preventing that software from sidling into the same folder as the browser's own components. The result should be fewer crashes, said Mozilla's...

That's the sense I got reading through Redmonk analyst Stephen O'Grady's billet-doux to Chromium, the open-source project behind the Google Chrome browser. O'Grady has long been friendly to Mozilla and a dedicated user of Firefox. When his head is turned by another browser, it's time for concern.

Yes, Firefox...

There is a critical JavaScript vulnerability in the Firefox 3.5 Web browser, Mozilla has warned.

The zero-day flaw lies in Firefox 3.5's Just-in-time (JIT) JavaScript compiler. Proof-of-concept code to exploit the vulnerability has been posted online by a security research group, Mozilla said in a post on its security blog on Wednesday. Security company Secunia rated the vulnerability as "highly critical" on Wednesday.

The hole could allow a hacker to launch a "drive-by" attack, according to...

I've reported before that Internet Explorer (IE) drops 5 percent market share points each year, while Mozilla Firefox gains 5 percentage points per year. But what is becoming increasingly clear is that IE's market share may be dropping more precipitously than previously reported, falling to 60 percent share in June 2009 instead of the 68 percent share expected.

Or is it?

The answer may depend on t...