Chrome: https://chrome.google.com/webstore/detail/gjnjekopfnpjfbophjifjinbigkldcol
Firefox: https://addons.mozilla.org/en-US/firefox/addon/mirror-browser/

And very important: http://ilu.servus.at/issue8.html

Install

• License: GNU General Public License v2.0 or later
• Weekly downloads: 23
• Average daily users: 618
• Rating: 4.8333/5 of 6 ratings
• Created: 2017-01-22 10:01:15
• Last updated: 2017-01-23 06:40:24
• Homepage:
• Support site and email
• Orig: https://addons.mozilla.org/en-US/firefox/addon/mirror-browser/
• API: {e88253ef-089e-4b36-b2a9-a0735958c62f}