You can inline mustache. http://icanhazjs.com/

But that may not be necessary. It looks like there are mostly just a few strings on the buttons ("Plugin Icon", "Update Now", etc.). Those can be added to the `string_data` block (https://github.com/mozilla/bedrock/blob/master/apps/firefox/templates/firefox/partners/landing.html#L14), and then accessed in your JS via the `windows.trans` method (https://github.com/mozilla/bedrock/blob/master/media/js/global.js#L82).