Firefox has and addon called "Hello, Goodbye" that does: https://addons.mozilla.org/en-US/firefox/addon/hello-goodbye/ https://addons.mozilla.org/en-US/firefox/

Firefox has and addon called "Hello, Goodbye" that does: https://addons.mozilla.org/en-US/firefox/addon/hello-goodbye/ https://addons.mozilla.org/en-US/firefox/addon/hello-goodbye...