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Google Chrome change that weakens ad blockers begins June 3rd
(www.bleepingcomputer.com)
This is a most excellent place for technology news and articles.
Not seeing a filter-list for uBO on their github:
https://github.com/OhMyGuus/I-Still-Dont-Care-About-Cookies
i referred to this part of your post - the addon does not add filter lists but skips GDPR Cookie dialogs by denying all. you can install it from addons.mozilla.org