Firefox, Opera updated to close numerous holes

Mozilla on Tuesday released a new version of its Firefox web browser to close seven vulnerabilities, including four rated "critical," meaning attackers could execute code and install malware. Version 3.6.4 of the browser also provides crash protection for users "by isolating third-party plug-ins [used to watch videos or play games] when they crash," according to a Mozilla blog post. Also this week, web browser maker Opera released version 10.54 to address four flaws, including one ranked "extremely severe," according to release notes. — DK

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