To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!Close
Welcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.Close
Tumblr Audio/Video player volume slider 2.4.1-signed.1-signed
An extension that adds volume sliders to Tumblr video and audio posts.
This add-on has been marked as experimental by its developers
This add-on is not compatible with your version of Firefox because of the following: