A unknown addon in firefox addon store with 4.5+ rating.
(From, most of the comments it’s seems like this addon is suspicious and don’t have enough proof or evidence to trust it with our data. So please everyone avoid using this addon. A better one is “UBLOCK ORIGIN”).
If you’re using Mozilla’s level of endorsement as a metric, note this prominent disclaimer on the addon’s page:
ublock origin does not have this disclaimer. It works well and is widely trusted.
Localcdn, I still don’t care about cookies like addons have this warning too…