Mouse & Video is a free browser extension for the Mozilla Firefox web browser that adds mouse-powered controls to HTML video players on the Internet.
You may use the add-on to change the volume, speed of the video, and to go back or forward in the video using just the mouse.
Most HTML players come with options to make changes to the volume, speed, or go back and forward, but these operations may not be accessible easily.
Take YouTube as an example. Volume controls are provided right away, but you need to click to modify the volume of the video that plays. Same is true for switching to another playback position, but controls are basic. To modify speed, you'd have to click multiple times as the option is located in the settings menu.
With Mouse & Video, all you do is move the mouse cursor on the video area and use the mousewheel to make the change.
The extension divides the video area into multiple sections, each with its own function. The lower half of the screen is reserved for seek operations. On the left, you may go back or forward 5 seconds, in the middle 2 seconds, and on the right 10 seconds.
The top half separates fullscreen, volume, and speed functions. Volume is in the center and it is larger than the other two. Move the mousewheel up to increase the volume or down to decrease it. Speed can be changed on the right, and the area on the left of volume is used to enter fullscreen mode.
You can reset the speed of the video by quickly scrolling up and down in that area (or vice versa).
Note that you need to make a couple of modifications in Firefox before the fullscreen option becomes available. Firefox limits the API by default and you need to lift that limit to give Mouse & Video permission to use it.
Note that you may use it to enter fullscreen mode only but not to exit it.
The preferences of the extension provide additional customization options.
You may change the back and forward increments there, or change the "all functionality" approach to a narrower functionality. You could use the entire interface to change the volume using the mousewheel or seek operations only.
One effect of making that change is that the extension becomes easier to use. Since you don't see any functionality borders, you may accidentally activate a different function than intended at times.
I suppose this becomes less and less of an issue as you get more accustomed to using the extension but it could be frustrating in the beginning. An option to show the borders would be useful as it would reduce the likelihood of that happening.
If you always wanted to use the mousewheel to change the volume on sites like YouTube, or use back and forward functions using the mouse, Mouse & Video may be exactly what you were looking for.
I tested the extension on several video streaming sites including YouTube, Dailymotion, and Twitch, and it worked fine on all of them.
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