1. First, install the Firefox extension from the Firefox Store

2. After a successful install, the extension will appear in the toolbar of the browser

3. If you now watch a YouTube video, you will see a new button under the video

4. Click on "MP3" if you want to download the audio file of the video, "MP4" for the video file or "get Thumbnail" to download the Thumbnail

1. First, install the Tampermonkey addon from the Chrome Web Store

2. Now, get the yLoader script from Greasy Fork. (Click on the green "Install" button.)

3. In the window that opens, click "Install".

4. The yLoader script should now be installed and working.

5. Click on "MP3" if you want to download the audio file of the video, "MP4" for the video file or "get Thumbnail" to download the Thumbnail

1. First, install the Opera extension from the Opera Store

2. After a successful install, the extension will appear in the toolbar of the browser

3. If you now click on a YouTube video, you will see two new buttons under the video

4. Click on "MP3" if you want to download the audio file of the video, "MP4" for the video file or "get Thumbnail" to download the Thumbnail

1. First, install the extension from the Microsoft Edge Store

2. After a successful install, the extension will appear in the toolbar of the browser

3. If you now click on a YouTube video, you will see two new buttons under the video

4. Click on "MP3" if you want to download the audio file of the video, "MP4" for the video file or "get Thumbnail" to download the Thumbnail

1. First, install the Tampermonkey addon for your Browser

2. Now, get the yLoader script from Greasy Fork. (Click on the green "Install" button.)

3. In the window that opens, click "Install".

4. The yLoader script should now be installed and working.

5. Click on "MP3" if you want to download the audio file of the video, "MP4" for the video file or "get Thumbnail" to download the Thumbnail