Mozilla has released updates for its Thunderbird email client, the SeaMonkey "all-in-one internet application suite" and older versions of its Firefox web browser - addressing a number of critical security vulnerabilities

Mozilla is updating its Firefox 3.x browser to version 3.0.12 for five critical security vulnerabilities. All of the issues have already been addressed in the latest Firefox 3.5.1 update which came out last week.

Mozilla Corp. yesterday patched 10 vulnerabilities, half of them marked "critical," in its open-source browser as it updated Firefox to Version 2.0.0.13. The new Mozilla Messaging Inc. spin-off, however, was not able to provide a matching update to its Thunderbird e-mail client, which shares five of the Firefox flaws that were fixed.

Ubuntuzilla is an APT repository hosting the Mozilla builds of the latest official releases of Firefox, Thunderbird, and Seamonkey. This repository should also work on Linux distributions that are derivatives of Ubuntu, and probably also on any Debian derivative.

"Today, the SeaMonkey project released a new version of its all-in-one internet suite. SeaMonkey 1.1.9 closes several security vulnerabilities and fixes several smaller problems found in previous versions. With that, SeaMonkey stays at the same level of security as its sibling Firefox, which is issuing updates for the same problems this week as well..."

Among desktop Mail clients, Mozilla Thunderbird is still a popular choice. Thunderbird unites many advantages, including the flexibility we all know from Firefox. One of the greatest joys for me is customizing Thunderbird’s look and feel.

Earlier than originally planned, the Mozilla Foundation developers have released Firefox version 3.6.2, closing a security hole that prompted the German Federal Office for Information Technology Security (BSI) to issue a warning about using Firefox.

"In this issue… # Firefox 2.0.0.12 schedule, # Firefox 3 Beta 3 code frozen, # Thunderbird in France, # 600,000,000 Firefox add-on downloads, # Mitchell interviewed for McKinsey Quarterly, # Mozilla Toronto on the CBC, # about:icecream ..."

Mozilla updated Firefox to version 3.5.1 for Windows, Mac, and Linux on Thursday, fixing a security problem, improving stability, and speeding launch time on some Windows systems, according to the release notes.