diff --git a/README.md b/README.md
index 2bae6b4..4b6c7f8 100644
--- a/README.md
+++ b/README.md
@@ -9,8 +9,8 @@ Better YouTube + works to improve the YouTube experience by providing quick acce
   * It allows for quick access to the YouTube video slug.
   * It lets Unix, Linux, and MacOS systems the ability to download the video using native app calls.
 
-# Version: 1.3.9
-* Tried further Improving video full screen detection.
+# Version: 1.4.0
+Updating for Firefox AMO
 
 # Download
 https://addons.mozilla.org/en-US/firefox/addon/better-youtube-plus/
diff --git a/src/manifest.json b/src/manifest.json
index f0dc532..5fb43a1 100644
--- a/src/manifest.json
+++ b/src/manifest.json
@@ -1,7 +1,7 @@
 {
   "manifest_version": 2,
   "name": "Better Youtube +",
-  "version": "1.3.9",
+  "version": "1.4.0",
   "description": "Enhancements for Youtube to have a better experience.",
 
   "applications": {