tempermonkey
https://greasyfork.org/en/scripts https://www.tampermonkey.net/
Online shopping assistant & Automatically query coupons & Save money
https://greasyfork.org/en/scripts/512700-online-shopping-assistant-automatically-query-coupons-save-money
shortlinks
Bypass All Shortlinks https://greasyfork.org/en/scripts/431691-bypass-all-shortlinks
video
M3U8 Video Detector and Downloader https://greasyfork.org/en/scripts/449581-m3u8%E8%A7%86%E9%A2%91%E4%BE%A6%E6%B5%8B%E4%B8%8B%E8%BD%BD%E5%99%A8-%E8%87%AA%E5%8A%A8%E5%97%85%E6%8E%A2
https://chromewebstore.google.com/detail/tampermonkey/dhdgffkkebhmkfjojejmpbldmpobfkfo