To try this addon
First download and install it,
Then create an identity in the addon,
Then go to https://www.grc.com/sqrl/demo.htm
Click on the "Proceed to the SQRL demonstration" button
And then try to login with SQRL.

The source can be found at https://github.com/Jaaap/SQRL/
The PRIVACY POLICY can be found at https://github.com/Jaaap/SQRL/blob/master/PRIVACY.md

Install

• License: MIT License
• Weekly downloads: 4
• Average daily users: 282
• Rating: 4.75/5 of 8 ratings
• Created: 2018-01-29 13:45:18
• Last updated: 2019-11-20 21:00:10
• Homepage: https://github.com/Jaaap/SQRL
• Support site and email
• Orig: https://addons.mozilla.org/en-US/firefox/addon/sqrl/
• API: sqrl@pass.dog