diff --git a/Firefox/README.md b/Firefox/README.md
new file mode 100644
index 0000000..41cdf70
--- /dev/null
+++ b/Firefox/README.md
@@ -0,0 +1,2 @@
+#BetterDiscord
+BetterDiscord enhances Discord with several features
\ No newline at end of file
diff --git a/Firefox/index.js b/Firefox/index.js
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index 0000000..3bbc578
--- /dev/null
+++ b/Firefox/index.js
@@ -0,0 +1,9 @@
+var self = require('sdk/self');
+
+// a dummy function, to show how tests work.
+// to see how to test this function, look at test/test-index.js
+function dummy(text, callback) {
+  callback(text);
+}
+
+exports.dummy = dummy;
diff --git a/Firefox/package.json b/Firefox/package.json
new file mode 100644
index 0000000..70181b3
--- /dev/null
+++ b/Firefox/package.json
@@ -0,0 +1,15 @@
+{
+  "title": "BetterDiscord",
+  "name": "betterdiscord",
+  "version": "0.0.1",
+  "description": "BetterDiscord enhances Discord with several features",
+  "main": "index.js",
+  "author": "Jiiks",
+  "engines": {
+    "firefox": ">=38.0a1"
+  },
+  "license": "MIT",
+  "keywords": [
+    "jetpack"
+  ]
+}
diff --git a/Firefox/test/test-index.js b/Firefox/test/test-index.js
new file mode 100644
index 0000000..b3ad6e8
--- /dev/null
+++ b/Firefox/test/test-index.js
@@ -0,0 +1,19 @@
+var main = require("../");
+
+exports["test main"] = function(assert) {
+  assert.pass("Unit test running!");
+};
+
+exports["test main async"] = function(assert, done) {
+  assert.pass("async Unit test running!");
+  done();
+};
+
+exports["test dummy"] = function(assert, done) {
+  main.dummy("foo", function(text) {
+    assert.ok((text === "foo"), "Is the text actually 'foo'");
+    done();
+  });
+};
+
+require("sdk/test").run(exports);