Are you ready for R8?
With the Q2 Spring service update known as R8, CRM will no longer be restricted to just Internet Explorer. This means that your custom form scripts could now be run in Firefox, Chrome and Safari. To help identify cross-browser issues in your form scripts Microsoft has released a new tool called the Custom Code Validation Tool for Microsoft Dynamics CRM 2011.
What does the Custom Code Validation Tool do?
The Custom Code Validation Tool opens up all of your JScript web resources and highlights all unsupported form scripts. It will highlight all scripts parts that do not have cross-browser support in blue. Any unsupported scripts that are known not to work in IE as well are highlighted in Red.
Fixing Unsupported Scripts
Check out the blog at http://blogs.msdn.com/b/crm/archive/2012/05/29/resolve-breaking-script-issues-when-upgrading-to-the-next-release-of-microsoft-dynamics-crm.aspx for information on fixing some of the more common unsupported scripts.
You can download the Custom Code Validation Tool from http://go.microsoft.com/fwlink/?LinkId=256377
Using the Custom Code Validation Tool
Just Download and Install the solution from the link above. Then just open the solution up and you will be able to navigate through all of your web resources in the upper left-hand frame.
Note: you may need to open the tool from a computer inside your network for the tool to work properly.