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Michael Coates, Mozilla's chief security officer, said that the newly released version of Firefox 16 had a security flaw that would allow a malicious website to identify sites that users had visited. This vulnerability was discovered by security researcher Gareth Heyes and published proof-of-concept code to prove the vulnerability.
Although Mozilla says there is no evidence that this vulnerability has been used by hackers, the company recommends that users who upgrade to version 16 downgrade to version 15.0.1 be considered fine. more fixed and unaffected by this error.
After only a few hours of suspending Firefox 16, Mozilla released a Firefox 16.0.1 update, allowing users to download and use it. An updated version to patch the vulnerability in Firefox for Android has also been released at the same time.
Mozilla also provides more information about the nature of this vulnerability and evaluates it as an important vulnerability.
It is known that the latest version of Firefox is equipped with HTML5 support, CSS3 animation effects, image size adjustment to fit the website.