AutoPlay Disabled for youtube
Prevents auto-play HTML5 videos in new tabs on [just] YouTube. This auto play blocker is an alternative to Click-to-Play / click to play. On some times like YouTube, click twice to begin first playback — From Dan Moorehead (xeonx1), developer of PowerAccess™ (http://PowerAccessDB.com)
The Best Youtube Downloader. Download Video MP4, AVI, MP3, HD, 1080P, 2K, 4k, & 8K 2018
Download any video and music (audio) from Youtube, Twitter, Vimeo, Facebook, Instagram, SoundCloud, Dailymotion, Liveleak, Break, Imgur, Mashable, Reddit, 1TV, 9gag, VK, TED, youku, bilibili, pornhub, xvideos, youporn and 10,000 more sites for free. Also support to download subtitles. Free, fast and easy to use. No need to install any annoying softwares. Supporting MP4, WEBM, AVI, 3GP, FLV, H64, ACC, FLA, MP3, M4A, 8K, 6K,4K, 2K, 1080, 720, 480, 360, etc.
Easiest YouTube MP3 Downloader
Adds a frame below the YouTube video which allows you to download a MP3 of the video without having to leave the page or click any buttons. It is fast, simple, and easy to use for anyone!
Bypass YouTube age verification
Watch restricted YouTube videos without having to log in. Slightly modified version of https://greasyfork.org/en/scripts/375525-youtube-age-verification-bypass, all credit to original author https://greasyfork.org/en/users/221926