Switch between http-S por GarryW

A button on URL bar to quickly manually switch between httpS and http for current tab (some http/https only web will automatically redirect, making it looks like not switched)

Source code: https://github.com/garywill/switch-between-http-s
Homepage: https://garywill.github.io

Credits:
- HTTPtoHTTPS : https://cup.aihedy.com/zh-CN/firefox/addon/httptohttps/ (Mozilla Public License, version 2.0)