For a complete list of changes see the release notes:

http://www.mozilla.org/en-US/firefox/10.0/releasenotes/

https://www.mozilla.org/en-US/thunderbird/10.0/releasenotes/

If you do not receive an update notice when using the application, select “Check for Updates” from the Help menu.

Download Firefox 10.0 http://www.mozilla.org/en-US/firefox/all.html

Download Thunderbird 10.0 https://www.mozilla.org/en-US/thunderbird/all.html

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Firefox and Thunderbird 10.0 released

The latest version of Thunderbird has the following changes:
“Fixes an issue that stopped users of Windows XP and earlier from running Thunderbird in some cases.”

http://www.mozilla.org/en-US/thunderbird/9.0.1/releasenotes/

Download Thunderbird 9.0.1
http://www.mozilla.org/en-US/thunderbird/all.html

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Thunderbird 9.0.1 released

The latest version of Thunderbird fixes several security issues.

MFSA 2011-52 Code execution via NoWaiverWrapper
MFSA 2011-51 Cross-origin image theft on Mac with integrated Intel GPU
MFSA 2011-50 Cross-origin data theft using canvas and Windows D2D
MFSA 2011-49 Memory corruption while profiling using Firebug
MFSA 2011-48 Miscellaneous memory safety hazards (rv:8.0)
MFSA 2011-47 Potential XSS against sites using Shift-JIS

Add-ons installed by third party programs are now disabled by default.

For a complete list of changes see the release notes:
http://www.mozilla.org/en-US/thunderbird/8.0/releasenotes/

If you do not receive an update notice when using the application select “Check for Updates” from the Help menu.

Download Thunderbird 8.0
http://www.mozilla.org/en-US/thunderbird/all.html

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Thunderbird 8.0 released

Mozilla

We had identified an issue in which some users may have one or more of their add-ons hidden after upgrading to the latest Thunderbird version (7.0). These add-ons and their data are still intact and haven’t actually been removed. Released today, the latest update for Thunderbird fixes this issue. You can find more details on the Add-ons Blog.

http://blog.mozilla.com/thunderbird/2011/09/30/issue-discovered-with-thunderbird-add-on-upgrades/

If you do not receive an update notice when using the application select “Check for Updates” from the Help menu.

Download Thunderbird 7.0.1
http://www.mozilla.org/en-US/thunderbird/all.html

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Thunderbird 7.0.1 released

Additional protection against fraudulent DigiNotar certificates.

https://www.mozilla.org/en-US/firefox/6.0.2/releasenotes/

http://www.mozilla.org/en-US/thunderbird/6.0.2/releasenotes/

If you do not receive an update notice when using the applications, select “Check for Updates” from the Help menu.

Download Firefox 6.0.2
https://www.mozilla.com/en-US/firefox/all.html

Download Thunderbird 6.0.2
http://www.mozilla.org/en-US/thunderbird/all.html

Certifiedbug.com

Firefox and Thunderbird 6.0.2 released

https://www.mozilla.org/en-US/firefox/6.0.1/releasenotes/

http://www.mozilla.org/en-US/thunderbird/6.0.1/releasenotes/

If you do not receive an update notice when using the applications, select “Check for Updates” from the Help menu.

Mozilla addons site targeted in same attack that hit Google

“In the absence of a full account of mis-issued certificates from DigiNotar, the Mozilla team moved quickly to remove DigiNotar from our root program and protect our users.”

http://www.theregister.co.uk/2011/08/31/more_site_certificates_forged/

Download Firefox 6.0.1
https://www.mozilla.com/en-US/firefox/all.html
Download Thunderbird 6.0.1
http://www.mozilla.org/en-US/thunderbird/all.html

Certifiedbug.com

Firefox and Thunderbird 6.0.1 released

https://www.mozilla.com/en-US/firefox/6.0/releasenotes/

http://www.mozilla.org/en-US/thunderbird/6.0/releasenotes/

If you do not receive an update notice when using the applications, select “Check for Updates” from the Help menu.

Download Firefox 6.0
http://www.mozilla.com/en-US/firefox/all.html
Download Thunderbird 6.0
http://www.mozilla.org/en-US/thunderbird/all.html

http://nakedsecurity.sophos.com/2011/08/17/firefox-6-out-several-critical-security-fixes/?

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Firefox and Thunderbird 6 are out

Thunderbird 3.1.9 fixes the following issues in Thunderbird 3.1.8:

* Prevents a crash after update, that is affecting some users.

http://www.mozillamessaging.com/en-US/thunderbird/3.1.9/releasenotes/

Update from within Thunderbird or download

Certifiedbug.com

Thunderbird 3.1.9 Released

Thunderbird 3.1.8 provides several fixes to improve performance, stability and security.

MFSA 2011-09 Crash caused by corrupted JPEG image
MFSA 2011-08 ParanoidFragmentSink allows javascript: URLs in chrome documents
MFSA 2011-01 Miscellaneous memory safety hazards (rv:1.9.2.14/ 1.9.1.17)

http://www.mozillamessaging.com/en-US/thunderbird/3.1.8/releasenotes/

http://www.mozilla.org/security/known-vulnerabilities/thunderbird31.html#thunderbird3.1.8

Update from within Thunderbird or download

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Thunderbird 3.1.8 Released

Press release
Brussels, 26 January 2011
Mergers: Commission clears Intel’s proposed acquisition of McAfee subject to conditions

The European Commission has approved under the EU Merger Regulation the proposed acquisition of McAfee, a vendor of information technology security, by Intel, both of the US. The approval is conditional upon a set of commitments ensuring fair competition between the parties and their competitors in the field of computer security, a growing concern due to the exponential rise in the number of malware such as viruses. The Commission was concerned that rival IT security products could be excluded from the marketplace given Intel’s strong presence in the world markets for computer chips and chipsets. In particular, the Commission worried about the high likelihood that the merged entity would embed its own security solutions into its chips and chipsets. To alleviate those concerns, Intel committed to ensuring the interoperability of the merged entity’s products with those of competitors.

The US Federal Trade Commission (FTC) approved the acquisition in December.
http://www.h-online.com/security/news/item/FTC-gives-its-blessing-to-Intel-s-acquisition-of-McAfee-1158590.html

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European Commission clears Intel’s acquisition of McAfee subject to conditions