Chaos Cosmos
Which Domains to Whitelist in Restrictive Firewalls
For some clients with restrictive firewalls, the Chaos domains should be whitelisted (allow-listed).
Last updated 1 September 2026
For some clients with restrictive firewalls, the Chaos domains should be whitelisted (allow-listed).
Overview
An error page is present instead of the Cosmos Browser if the firewall is restricted.
How to fix it?
The following domains should be whitelisted in restrictive firewalls:
This allows you to use Cosmos Browser.