Remote XUL Manager – Get this Extension for 🦊 Firefox (ja)Support for Remote XUL was removed on Firefox 4 (see bug 546857 for more information). But there's still a whitelist that enables Remote XUL, which can be edited using this add-on. How to use on Desktop Firefox (and SeaMonkey) Click on the Firefox button on the top left, then select Web Developer, and finally Remote XUL Manager to open the management window. On Mac OS and some other systems, as we
