Was curious to see if uBlock Origin worked.
I tested the Firefox legacy version from the Github page.
Here are the errors listed in the console:
Thu May 10 2018 17:48:04
Error: TypeError: messager is null
Source file: chrome://ublock0/content/frameModule.js
Line: 401
----------
Thu May 10 2018 17:48:04
Error: TypeError: messager is null
Source file: chrome://ublock0/content/frameModule.js
Line: 401
----------
Thu May 10 2018 17:48:04
Error: ReferenceError: addMessageListener is not defined
Source file: chrome://ublock0/content/js/vapi-client.js
Line: 274
----------
Thu May 10 2018 17:48:04
Error: TypeError: details is undefined
Source file: chrome://ublock0/content/js/settings.js
Line: 235
----------
Thu May 10 2018 17:48:04
Error: TypeError: messager is null
Source file: chrome://ublock0/content/frameModule.js
Line: 401
----------
Thu May 10 2018 17:48:04
Error: ReferenceError: addMessageListener is not defined
Source file: chrome://ublock0/content/js/vapi-client.js
Line: 274
----------
Thu May 10 2018 17:48:04
Error: TypeError: details is undefined
Source file: chrome://ublock0/content/js/settings.js
Line: 235
Someone with Github access should post this to the ticket -
https://github.com/gorhill/uBlock/issues/3670