RKN Alert

Uses the icon color to show whether a site is listed in Roskomnadzor's registry. Article on Habr - https://habr.com/post/425831/ The extension uses an icon to indicate websites and IP addresses blocked by Roskomnadzor. If the address or IP is listed in the registry, the icon turns red for that tab. This is a simple extension. It works quickly. The entire RKN database is downloaded from the Internet and then updated periodically. ---------- I would be glad if someone shared a database of permanently blocked websites (there are about 4,000 of them).