Click the in the top-right corner and select Settings . Navigate to Privacy & Security in the left sidebar. Scroll down to the Permissions section.
If a website is blocked due to a corrupted cookie or a saved preference, clearing the site data usually fixes it. how to unblock a site in firefox
Sometimes a site isn't blocked by a security warning but simply fails to load correctly because Firefox is blocking specific elements like pop-ups or trackers. Click the in the top-right corner and select Settings
In the same window, locate the Configure Proxy Access to the Internet section at the top. If a website is blocked due to a
Firefox has a built-in proxy configuration tool. If your school or office uses a proxy to block sites, you can try a different proxy. However, for unblocking, you usually want to use a third-party proxy server.