Comment 1 for bug 331481

The constraint in Firefox is described here: http://kb.mozillazine.org/Security.fileuri.strict_origin_policy, and can be worked around by setting the preference security.fileuri.strict_origin_policy to 'False'.

However we are unlikely to get this setting changed in the Firefox package, so we will have to work around it. Workaround options are:

 a) use an embedded browser (webkit or gecko with this constraint disabled) to display the report
 b) dictate which browser (non-gecko based) is used to display the report, and add that as a dependency to the package(s)
 c) place a copy of the checkbox.xsl in the same directory as the submission.xml when the report is generated

Option c) seems the most sensible for now.