Firefox 1.5.0.10 Date added: September, 21st 2006 - (Open Source)

What's new in this version:

MFSA 2007-09 Privilege escalation by setting img.src to javascript: URI
MFSA 2007-08 onUnload + document.write() memory corruption
MFSA 2007-07 Embedded nulls in location.hostname confuse same-domain checks
MFSA 2007-06 Mozilla Network Security Services (NSS) SSLv2 buffer overflow
MFSA 2007-05 XSS and local file access by opening blocked popups
MFSA 2007-04 Spoofing using custom cursor and CSS3 hotspot
MFSA 2007-03 Information disclosure through cache collisions
MFSA 2007-02 Improvements to help protect against Cross-Site Scripting attacks
MFSA 2007-01 Crashes with evidence of memory corruption (rv:1.8.0.10/1.8.1.2)