Note : You will not get any adult videos on YouTube search results if you turn on Safety Mode.
If you don’t have a Google account or if don’t want to log in to YouTube just for watching a video clip that has been flagged as potentially, age restricted. You can still watch the video without signing in or conforming your age. Just use these little URL tricks.
1. If you remove the “watch?” and replace the “=” with a “/”, you’ll get a link that goes directly to the video without the rest of the YouTube site and it’ll play full width in your browser.
YouTube URL looks like this
Change it as
2. Instead of adding watch_popup, take a ID of the YouTube video and replace it in the following URL
This trick doesn’t work for videos that have the embed option as disabled.
3. you can add “nsfw” before the youtube.com portion of the link like this.