mozilla -- multiple vulnerabilities

The Mozilla Project reports:

MFSA 2012-20 Miscellaneous memory safety hazards (rv:12.0/ rv:10.0.4)
MFSA 2012-21 Multiple security flaws fixed in FreeType v2.4.9
MFSA 2012-22 use-after-free in IDBKeyRange
MFSA 2012-23 Invalid frees causes heap corruption in gfxImageSurface
MFSA 2012-24 Potential XSS via multibyte content processing errors
MFSA 2012-25 Potential memory corruption during font rendering using cairo-dwrite
MFSA 2012-26 WebGL.drawElements may read illegal video memory due to FindMaxUshortElement error
MFSA 2012-27 Page load short-circuit can lead to XSS
MFSA 2012-28 Ambiguous IPv6 in Origin headers may bypass webserver access restrictions
MFSA 2012-29 Potential XSS through ISO-2022-KR/ISO-2022-CN decoding issues
MFSA 2012-30 Crash with WebGL content using textImage2D
MFSA 2012-31 Off-by-one error in OpenType Sanitizer
MFSA 2012-32 HTTP Redirections and remote content can be read by javascript errors
MFSA 2012-33 Potential site identity spoofing when loading RSS and Atom feeds