Make sure your CRM 2011 customizations will work with the upcoming cross browser releasehttp://blogs.msdn.com/b/devkeydet/archive/2012/12/06/make-sure-your-crm-2011-customizations-will-work-with-the-upcoming-cross-browser-release.aspxUPDATE: The Dynamics CRM in the Field blog just published a useful post on Script Errors after Installing UR12 . The next update to CRM 2011 introduces an expanded range of supported browsers. You can learn more about the upcoming release here: en-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)