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+This is a Firefox Addon that redirect youtube URL to the embed version to have a cleaner interface for free.
+
+# installation
+
+* git clone or export this repo
+* go to page "about:debugging#/runtime/this-firefox" (or "about:debugging"  then click "This Firefox")
+* click on "Load Temporary Add-on…" 
+* select "manifest.json" file
+
+## to have it in private navication
+
+* go to "about:addons"
+* select the extension
+* for the line "Run in Private Windows", click "Allow"
+
+
+# usage
+
+Load any URL like this : "https://www.youtube.com/watch?v=xxxxx" (click link or enter in the address bar), it will change it to "https://www.youtube.com/embed/xxxxxxxx" and load this page instead.