The Buffer First Chrome extension is the easiest, fastest way to load YouTube videos before watching.
If you're connected to a slow network, this extension can help you buffer YouTube videos first then watch later for a smooth viewing experience.
1. Go to a YouTube video page.
2. Select the video quality you desire.
3. Click the extension icon at the top of your browser.
Please note: certain video quality and length of video will not let you buffer the entire video. If that's the case, use a lower video quality or watch until the latest buffer time and click on the extension button again to continue loading the rest of the video.
Buffer first, watch later.