diff --git a/chrome/vlibrasplugin.pem b/chrome/vlibrasplugin.pem
deleted file mode 100644
index f287079..0000000
--- a/chrome/vlibrasplugin.pem
+++ /dev/null
@@ -1,28 +0,0 @@
------BEGIN PRIVATE KEY-----
-MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQC8UI+z9pRhF8Kv
-WC3Y2eI41b4AJeROjrO3rVeBG+FYjMuOB0r1byFUlebGP/Nep7nZ9eEUZ4E71lkp
-WDyYLfZTb+gum6MQAeh8Wd7aBh9qSa4ru08ieu/8HxmHdfUFpWph3yPMV0TdAXVh
-sbMLWcvzu+AmEkPM09KtXENyAOkR63ncll7HtmGFdxicTzNWuIhrvrhsd1xtuS1c
-g4vk1XEJ5mcSnVLVGojAI8uwY4QEAGC2bUMzmD6mtZxySHu5XxNnk1xFdTxebd1K
-4u0HyDgpY7epRsnkYHQq9HZ7Smet2JW4tHmd/5nPMZXFztZ/bUSuOqAmXvmLXvmw
-JSpVnEENAgMBAAECggEAVCmFMB8iDYq6/fbg9qvaSSBt/E7zDJEGjS6xjwhQ3GyA
-hQeJXsu+D7m3HB90u3cmvtz/LUldHssbqji/TBwunPfEwx/X7s2LhBf+W16lJ7Gq
-X+0k3vomy31ywXHcght9wiQiMa9HHacLORBcPtRxLItpEFrVZnO9ErHLiuYRRGo+
-EKP79o1dVZ5kldJ7toB4ok+KIDu2PJJShj4nXj7mKNlGZPH2hYn+NG7ZLFOjUp09
-AKjTIE5WADt5bOKN9Wo2HiCG63zLZsaJmeYh2v3TxnpAj+W/TMxV/y0kIe7gzqw1
-2qxdBmLBILNM8AkwadpbJRuC6aynd41sqejix3uemQKBgQDzONGl0Yf8fg5EyX3r
-w/OldzZv/Comy6Ka/aq8I88clFBlEoD2os+lF6IDAgMj102awjiI+fxOe81C7Pza
-a5eGHeq3qaE0E7v7ggcW7YXlFs9YC6RikKEkGCFnnaxeBf+/iXICcf32GzZkSow2
-JTedIJIbu/oca2UFpVsK4inkHwKBgQDGNUZMmJ1ca4WdpmP6mUCwqEgOZ+UcG/3K
-4Sy0BtJOB1wVoQOzM1q2FUurCqps81cghUbtJyeRk4y4eI1rOEbz8m0UB0hWyEq1
-pJJiz0nei7ficAIHO5e2elDV2lJ7KNxYeb3YN2NXbGmwmsI/IoudPp+wghnl4Xns
-2JcBFZdVUwKBgQCBDcb/6xvyt5gum5M7BDBFvemepfhfuXFAOBTd20pL6c52ssjH
-FUCEYvPOEMVFwTomQaPp2msr4bjaKBFKfAhcW4dtiI5Gqan3G9lTKxj+o4nFN/gz
-bHZ0RnGDH0CUay52nSFndsDAU1QbBws6t6i4sM2V9boSVlG2GzUhozuDFQKBgG2P
-kTZRvdoSTR9hlC43fDyqKHpeD5TEHDuC0HUKuEENbGdAQ41Qu7med98p3B6xO93s
-DdKVLBgaGVT2viUgTIgX3xeNFv1xZWqWd5xKvKhZTuHJzDU3SZtCbWBod+NAKNx3
-HutfYng2ow1N3kWL0OSwcxDcOXiKdBzpdD7TMn2lAoGAH3xcQ9pI1aCeNxrnyvsJ
-1EFlSX+3HQvjd9JOVemiVd6jP5SbrM6DplzimYPVmJhlAcq+wi8/dHyOGMRCb7ZV
-Yv44hSheny/RhfMcePwubLBhVULRrdg2LWOEnSgrLIWNe2CCJ+xzgr2mEM+vGazI
-zVWbI5s+shUi96/ZSZMjxGo=
------END PRIVATE KEY-----
diff --git a/firefox/index.js b/firefox/index.js
index 3bbc578..84e4822 100644
--- a/firefox/index.js
+++ b/firefox/index.js
@@ -1,9 +1,26 @@
 var self = require('sdk/self');
+var cm = require("sdk/context-menu");
+var { open } = require('sdk/window/utils');
 
-// 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;
+cm.Item({
+  label: "Traduzir para LIBRAS",
+  context: cm.SelectionContext(),
+  contentScript: 'self.on("context", function () {' +
+                 '  var text = window.getSelection().toString();' +
+                 '  if (text.length > 20)' +
+                 '    text = text.substr(0, 20) + "...";' +
+                 '  return "Traduzir \'" + text + "\' para LIBRAS";' +
+                 '});' +
+                 'self.on("click", function (node, data) {' +
+                 '  self.postMessage( window.getSelection().toString() );' +
+                 '});',
+  onMessage: function(selectedText) {
+    var window = open('data:text/html,Hello Window', {
+      name: 'jetpack window',
+      features: {
+        width: 200,
+        height: 100
+      }
+    });
+  }
+});
diff --git a/vlibrasplugin-chrome.pem b/vlibrasplugin-chrome.pem
new file mode 100644
index 0000000..f287079
--- /dev/null
+++ b/vlibrasplugin-chrome.pem
@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----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+-----END PRIVATE KEY-----
--
libgit2 0.21.2