Download gif2apng version 1.4:

http://sourceforge.net/projects/gif2apng/files/

Command line: gif2apng.exe anim.gif [anim.png]

Changes:
- Turned on transparency (blend=over) optimization
- Added MacOS binaries

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Firefox 3.6.7 is available from http://www.mozilla.com/en-US/firefox/all.html

Good thing about the version: APNG bug #441971 is fixed.

This bug caused previous versions of Firefox to reject APNG files with blend=over in mode 0 (grayscale), mode 3 (indexed), and mode 2 (rgb).

Here’s some examples of APNG files with blend=over:

Also, gif2apng 1.4 will be released shortly, it will take advantage of blend=over option for better optimization.

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TweakPNG v1.4.0 is available from http://entropymine.com/jason/tweakpng/

This version lets you edit information in APNG chunks (acTL, fcTL).

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libpng-1.4.3 is available from http://libpng.sf.net/

APNG patches for libpng:
http://littlesvr.ca/apng/
http://sourceforge.net/projects/vdubapngmod/files/libpng-apng-patch/
http://sourceforge.net/projects/libpng-apng/

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Firefox 3.6.4 is available from http://www.mozilla.com/en-US/firefox/all.html

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