I cannot yet give this app 5 stars, as it does not automatically play videos on taps in the foreground, if they were opened as background tabs first. (I'm watching a video, opening another in the background for later. After the current video is done, I switch to the other tab, but the video won't start.)

Edit: Okay, anybody fighting with the same issues as I, using Enhancer for YouTube, if you want to have the following happen on YouTube:

- Have foreground video playing automatically
- Have background (other tabs) videos not play automatically
- Have video play automatically on switching to it
- Starting a new video while an old one is still playing and having this automatically pause the old one

Then

1. disable the option "Automatically pause videos opened in background tabs" in Enhancer
2. tick "Pause videos playing in background tabs when a video starts playing in the foreground tab"
3. enter about:config into your search bar
4. search for media.autoplay.default and set to 0
5. search for media.block-autoplay-until-in-foreground and set to true

Simple Very Good

This is THE most annoying thing in that will not stay functional all day! It clears itself during or after use and I have to go back and reload it every, single time!

The "Enhancer for YouTube" add-on for Firefox allowed me to take control of my YT viewing experience. So many helpful features I can't live without for example:
*Custom speed control in increments of .05 allows you to pick up the pace on audio books featuring a slow voice actor.
*Video Player Pop out window allows you to minimize the browser page and move the player to any monitor desktop you want
*Easy access to Add-On options and controls with a tool bar that features buttons for controls you choose such as cinema mode, volume boosetr, playback speed controls, filters, run your personal javascript, option settings and more. This add-on makes me happy to contribute to the author's coffee fund! :)to me.
*Themes
*A custom user java panel where you can add your own scripts..

Yes indeed.

Good jobs

This is a great add-on! However, there's a problem after the latest Firefox update 67.0.4 (64-bit). After typing text in the YouTube search box, it cannot be seen when using one of the themes.

Where the f is option to remove Keyboards shortcuts icon from video player ?

When using a theme you can't see what you are typing in the search bar

Last days i have problems with youtube search box. I can't see anything... Anybody else?