Cool Tools

Thunderbird 17.0.3 released. Security and bug fixes.
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Firefox 19.0 released. New feature (PDF Viewer) and bug fixes.
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The Document Foundation announces LibreOffice 4.0
This is a free Microsoft Office alternative.
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Firefox 18.0.2 released. New features and bug fixes.
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Google Chrome Updated To 24.0.1312.56.
Download or update with Chrome.
More info at the Google Chrome Blog.
Security fixes plus:

The Stable channel has been updated to 24.0.1312.56 for Windows, Mac, Linux, and Chrome Frame platforms. This build contains the following fixes:
Fixed performance of mouse wheel scrolling. [Issue: 160122]
Fixed visited links regression. [Issue: 160025]
Fixed windows installation when installed as admin. [Issue: 166473]

Audacity 2.0.3 is out.
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Audacity is a free, easy-to-use and multilingual audio editor and recorder for Windows, Mac OS X, GNU/Linux and other operating systems. You can use Audacity to:
Record live audio.
Convert tapes and records into digital recordings or CDs.
Edit Ogg Vorbis, MP3, WAV or AIFF sound files.
Cut, copy, splice or mix sounds together.
Change the speed or pitch of a recording.
And more! See the complete list of features.

Firefox 18.0.1 released. New features and bug fixes.
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Just picked this up via Mark Russinovich on Twitter.
Autoruns for Windows v11.4 has been released. “additional startup locations, better support for WinPE, bug fixes”