Looking for help here. I created a new Firefox profile and wanted to load the Bypass Paywalls Clean Add-on/Extension from the XPI file. So I did what I've always done and got the message displayed above.
Then I went into about:config and changed both xpinstall.whitelist.required and xpinstall.signatures.required to false. Fully exited and restarted the browser but still, no dice.
Anyone know how to fix this?
SOLUTION: go to extensions.blocklist.enabled and turn it to false
But even then, they're only liable if they distribute it themselves. Why go the extra mile of blocking the addon being sideloaded, as it's solely done by the user?
My guess: The blocklist is the only way they have of removing it for all those who download it from them when they previously distributed it. And they do that so they can not be held liable for those copies.
A company like News Corp might go "This was downloaded 50 000 times from you and can be used to bypass access control on 10 000 000 of our articles which would otherwise cost $20 each. So we are suing you for 10 trillion dollars in losses. See you in court."