Mozilla patches 12 Firefox flaws

Browser version 44 fixes three critical vulnerabilities

Mozilla has patched several vulnerabilities putting users of its Firefox browser at risk of cyber attacks.

The open source firm released version 44 of its browser on Tuesday, and issued an update listing 12 fixes on its security advisory board.

Three of those are listed as 'critical' vulnerabilities, and concern unsafe memory manipulation, buffer overflow in WebGL, and other memory safety hazards.

Another two were classified as high', which could involve an attack harvesting data from a user during their regular browsing activity. These involved address bar spoofing attacks, by which an attack could create a fake address bar when a user opened a new tab, and some code errors in the browser's Network Security Services.

The remaining vulnerabilities were listed as moderate', and included minor performance delays for file downloads on OS X and a missing delay following user click events.

Earlier this month, Firefox issued a blog update about issues some users have had with devices such as security scanners and antivirus products, after Firefox rejected sites using the SHA-1 certificate, which is in the process of being phased out.

Firefox updated its private browsing functions last year to make it simpler for users to stop companies tracking their browse usage.

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