Mozilla has released the first update to their Firefox browser since making Firefox 4 available in March. Firefox 4.0.1 fixes three security and stability issues, two that are rated critical.
Developers discovered and fixed some memory safety bugs in the browser they feared could bue used to run arbitrary code. Additionally, Mozilla updated the browser’s WebGL feature which contained bugs that could have led to crashes and the execution of malicious code on systems running vulnerable versions of the browser. Mozilla also patched an XSLT generate-id() function heap address leak, brought to their attention by Chris Evans of the Chrome Security Team.
Mozilla also pushed version 3.1.10 of Thunderbird, their e-mail and news client this week, fixing performance, stability and security issues.
Mozilla’s Bugzilla bugtracker has a full round up of the changes for both Firefox and Thunderbird.
