id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
9612	Moving the text cursor inside form elements causes js-error and breaks source-mode	janpe		"Moving the text cursor inside a submit, textarea or such by using the arrow keys causes an error shown in Firebug: ""Error: Permission denied to access property 'nodeType'"" in ckeditor.js on line 13. 

This will also result in the Source-button not working so that you cannot enter the source-mode. The button will work again after moving the cursor out of that place.

Here's a sample source code with which you can easily reproduce the bug by moving the cursor with your arrow keys.

Also tested this on the nightly build.
{{{
<h1>Form</h1><p><input id=""upload"" name=""upload"" type=""file"" /><br /><input id=""submitForm"" name=""submitForm"" type=""submit"" value=""Submit"" /></p>""
}}}
I am using Win7 Pro and Firefox 16.0.2
"	Bug	confirmed	Normal		General	3.1		Firefox