http://www.forest.impress.co.jp/docs/review/20120604_537635.html
http://forum.palemoon.org/viewtopic.php?f=1&t=6531&sid=7385a2e6ff1e335c5417a71c96da1ad2
Updated the Firefox Compatibility mode version to 31.9.
With the improvements in rendering, HTML5 support and overall feature set in this version, the Firefox Compatibility mode (as presented in the UserAgent string) has been bumped to prevent websites from complaining about "using a too old/unsupported version of Firefox" (e.g. Google websites) while offering those sites a Firefox Compatibility version that is in line with the "expected" feature set of the browser. User agent sniffing remains a really bad practice and should not be done, so this is combating a symptom rather than a cause. Pale Moon's new presented version is a close match, but will never be 100% so you may still run into some websites that don't like Pale Moon's user agent and require a manual override as outlined in the FAQ.
めも、うーん
