firefox.patch

diff --git a/js/script.js b/js/script.js
index 419ea1b..4f83772 100644
--- a/js/script.js
+++ b/js/script.js
@@ -1,4 +1,5 @@
-chrome.extension.sendMessage({}, function(response) {
+let target = chrome.runtime || browser.runtime;
+target.sendMessage({}, function(response) {
     var readyStateCheckInterval = setInterval(function() {
         if (document.readyState === "complete") {
             jQuery.expr[":"].icontains = jQuery.expr.createPseudo(function (arg) {
diff --git a/manifest.json b/manifest.json
index 48b80d0..1a3327b 100644
--- a/manifest.json
+++ b/manifest.json
@@ -31,5 +31,10 @@
       ],
       "run_at": "document_end"
     }
-  ]
+  ],
+  "applications": {
+    "gecko": {
+      "id": "{c7a6dc04-70bb-4518-95ca-83515d1e8046}"
+    }
+  }
 }