Silverlight breakpoints not hit in Firefox

Sometimes, for no reason at all, something that worked yesterday can be broken today. Like debugging a Silverlight project in Firefox. Since this afternoon my breakpoints are not hit anymore when I run from Visual Studio 2010. I found the solution here and decided to blog about it just to have a link to it for future references.

Enable Silverlight debugging in Firefox:

• Open Firefox
• type about:config in the address bar
• Search for dom.ipc.plugins.enabled
• Change the value to false
• Restart Firefox