Mozilla Thunderbird 0.7.3 is out today released minor upgrades to three of its major products. Firefox 0.9.3, Thunderbird 0.7.3 and Mozilla 1.7.2 are all now available. These three new releases were created to correct 4 possible security vulnerabilities in past versions of each product. Windows builds: Official Windows, Official Windows installer (discussion) Linux builds: Official Linux Mac builds: Official Mac