Firefox's flaws fixed in upgrade

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Software

The Mozilla Foundation, maker of the open source web browser Firefox, has released a security patch to plug two critical security flaws in the browser.

The flaws were found last week by net security experts. Danish firm, Secunia, called them "extremely critical".

Mozilla has now recommended people upgrade to the latest version, Firefox 1.0.4, which is a security update.

Firefox is Microsoft Internet Explorer's (IE) main rival. IE has dominated the browser market.

But many have switched to Firefox because, so far, it has had fewer security flaws than IE and is more customizable.

Although the vulnerabilities, reported on Saturday, had been identified no cases had been reported of them being exploited.

Secunia said they were "extremely critical" because they could have let cookie and history information be used to get access to personal information or access previously visited sites.

The first flaw reported fooled the browser into thinking software was being installed by a legitimate, or safe, website.

The second happened was related to the software installation trigger which was not able to properly check icon web addresses which contain JavaScript code.

Potentially, a hacker could have taken advantage of the security flaws to secretly launch malicious code or programs.

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