When I open the website https://beta.publishers.adsterra.com/, I see the following message: " Hmm. We’re having trouble finding that site. We can’t connect to the server at beta.publishers.adsterra.com. If you entered the right address, you can: Try again later Check your network connection Check that Firefox has permission to access the web (you might be connected but behind a firewall) " Despite the website working fine on other browsers on my device, such as Chrome and Opera.