He offers ubo/abp block lists and says his extension accepts the policy when necessary. But there is no configuration, no way to add new site rules, and no sour

He offers ubo/abp block lists and says his extension accepts the policy when necessary. But there is no configuration, no way to add new site rules, and no source repo (would have to open the xpi myself). It seems more useful to write my own Greasemonkey script, instead. At least when I encounter a site like this, which I couldn't think of.