This extension makes your browser load Wikipedia content from one of the available Wikipedia mirrors, instead of wikipedia.org.
ZeroWiki intercepts any request to wikipedia.org and fetches content from a Wikipedia mirror of your choice. It is especially useful for when you can't access Wikipedia for any reason and you don't want to deal with any VPN's or DNS settings.
Please note that most of the mirrors available in ZeroWiki are owned by people and not companies (except for Wikiwand). If you do not trust any of these mirrors, then I suggest you not use this extension. Also, I suggest you not enter any private information (username, password etc.) on any of the pages fetched from any of these mirrors as they most probably do not have any privacy policies (again, except for Wikiwand).
Any inconveniences regarding navigation between pages or in-page anchors are caused by the mirrors themselves, since ZeroWiki does not take any action once Wikipedia content is loaded.