Ubuntu Security Notice 5284-1 - Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, bypass security restrictions, obtain sensitive information, or execute arbitrary code. It was discovered that extensions of a particular type could auto-update themselves and bypass the prompt that requests permissions. If a user were tricked into installing a specially crafted extension, an attacker could potentially exploit this to bypass security restrictions.
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