ViewTube:
http://sebaro.pro/viewtube/files/viewtubetest.user.js
https://gitlab.com/sebaro/ViewTube/raw/master/viewtubetest.user.js
https://github.com/sebaro/ViewTube/raw/master/viewtubetest.user.js

SaveTube:
http://sebaro.pro/savetube/files/savetubetest.user.js
https://gitlab.com/sebaro/SaveTube/raw/master/savetubetest.user.js
https://github.com/sebaro/SaveTube/raw/master/savetubetest.user.js