Firefox 3.5.1 fixes critical security flaw

The Mozilla Corp. has released Firefox 3.5.1, a new version of their Web browser. The new release corrects a security problem the company acknowledged earlier this week as “critical.” Firefox is available for free download from the Web site.

Firefox 3.5.1 corrects the security flaw identified in Mozilla Foundation Security Advisory 2009-41: a problem with the software’s “Just-In-Time” (JIT) compiler used for JavaScript. A crash could result in an exploitable memory corruption problem that could, under certain cases, be exploited by an attacker to run arbitrary code, like malware.

Several stability improvements have also been made. Mozilla first outlined plans to release Firefox 3.5.1 earlier this month.

Firefox 3.5.1 requires Mac OS X 10.4 or later.

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