Mozilla has released several updates for its Firefox web browser and the open-source outfit's Thunderbird news and email client.

A total of 67 security and stability flaws, including 21 critical vulns and one blocker bug have been fixed in Firefox 3.6.13. An update for Mozilla's aged Firefox 3.5.16 was additionally released.

Mozilla also issued fixes for Thunderbird 3.1.7 and Thunderbird 3.0.11 yesterday. The updates are intended for Windows, Mac and Linux versions of the software.

"These releases fix several problems with large email folders stored on the user’s computer as well as several fixes to improve performance, stability and security," said Mozilla.

"Thunderbird 3.0.11 is the last security and stability update for Thunderbird 3.0.x. Thunderbird 3.0.x users will be prompted and encouraged to start using Thunderbird 3.1 starting early next year."

Full details about the latest Mozilla browser updates can be found here, and the Thunderbird releases are this way. ®

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