Is possible add a IP Firewall rule to all sites in one account?
You can use Firewall -> Tools to apply certain blocks to all sites in your account.
But this is for only 1 site in my account, I need block all websites
If you want to use Cloudflare’s Firewall you need to redo the rule setup for each site. Like @sdayman mentioned you can use IP Access Rules instead
Thanks, very clear.