User Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0 Build ID: 20130326150557 Steps to reproduce: I am creating an addon, that allows users to save a lightweight theme(save header and footer images in data folder), and lets users to install the theme in a browser without internet access. Actual results: I set the preference "lightweightThemes.usedThemes" using the API "sdk/preferences/service". To get the url of header, footer, icon and preview from data folder I use require("sdk/self").data.url('') that returns "resources://the-rare-id/data/". The theme appears as installed but doesn´t work. Only is seen the icon and the preview images. Expected results: Firefox should accept URL like "resources://the-rare-id/data/" to set the header and footer of lightweightThemes.

Can you attach all of the relevant code for the addon to this bug?

This is the main.js.

This is the main.js

Bug 577606 comment 8 doesn't apply to resource URIs, so it seems like this could/should be solved separately.

Per policy at https://wiki.mozilla.org/Bug_Triage/Projects/Bug_Handling/Bug_Husbandry#Inactive_Bugs. If this bug is not an enhancement request or a bug not present in a supported release of Firefox, then it may be reopened.