hello, what's the exact error message you are seeing?

Under the heading FORBIDDEN is the message “You do not have access / with this server.”

http://doonesbury.washingtonpost.com/ is working for me at the moment.

You may see forbidden if a website does not recognize your browser as an end-user browser but instead as a "bot" attempting to scrape content from the site. It also may show forbidden to requests from certain networks. If you use security/privacy software/add-ons/services that might change how your Firefox or your network connection appears, these might be causing the issue. These include, for example:

• add-ons or security suites that strip off or modify the user agent string (you can use my test page to see what your Firefox is sending: https://jeffersonscher.com/res/jstest.php)
• private VPN or TOR service that routes your request through a different network

Or if you are accessing the site from/through a country that filters access to U.S. media, the Washington Post might be blocked for political reasons.