If you mean that FF blocks this extension due to its security signature, simply go to addons.mozilla.com and search for X-Notifier. Once you found it, install it from there and you won't have any more issues. You don't have to remove the old version before you do this.
make usable in Firefox
sign extension
Already signed
If you mean that FF blocks this extension due to its security signature, simply go to addons.mozilla.com and search for X-Notifier. Once you found it, install it from there and you won't have any more issues. You don't have to remove the old version before you do this.