New Firefox flaws exploit pop-ups, phishing hole

Chicago (IL) - A pair of new flaws in Mozilla's Firefox browser have found ways around the security infrastructure to fool the system and open up user PCs to potential attacks, according to a report published this week by SecuriTeam.

The first flaw affects Firefox users who have manually disabled pop-up windows. Through a hole in the browser, an intelligent hacker can find a way to disable a specific security check on a user's computer, and bring up a fake permission screen asking the user to allow a pop-up to, for example, access a video or download. Upon allowing the pop-up, the hacker could then access the victim's computer and steal personal information.

The second flaw concerns the phishing protection in Firefox. According to SecuriTeam, there is a fairly easy way to circumvent the browser's phishing filter, by just adding specific characters into the URL of the site.

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Mark Raby
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Mark Raby is a freelance writer for Tom's Hardware, covering a wide range of topics, from video game reviews to detailed analyses of computer processors.