The open-source Mozilla Foundation has updated its Firefox browser to fix seven flaws, including four deemed to be “critical”.
Although Mozilla said none of the critical flaws were currently being exploited, it explained that some for the flaws could potentially be used by remote attackers to run arbitrary code on users’ machines.
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As well as the four critical patches, there were also two security patches that addressed “moderate” threats and one that dealt with an “important” threat.
The new Firefox 18.104.22.168 containing the patches is available from the Mozilla website and existing users are being offered an automatic update.
In addition to the browser update, Mozilla also brought out a new version of its Thunderbird e-mail client. Thunderbird 22.214.171.124 patches six vulnerabilities, two of them deemed to be “critical”.
The Firefox browser has around 10% of the browser market, according to web analytics companies.
Microsoft’s Internet Explorer browser has around 85% of the market.
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