Additional information about this problem or error is currently unavailable.

The browser could not find the host server for the provided address.

• Did you make a mistake when typing the domain? (e.g. ww.mozilla.org instead of www.mozilla.org)
• Are you certain this domain address exists? Its registration may have expired.
• Are you unable to browse other sites? Check your network connection and DNS server settings.
• Is your computer or network protected by a firewall or proxy? Incorrect settings can interfere with Web browsing.

• Could the item have been renamed, removed, or relocated?
• Is there a spelling, capitalization, or other typographical error in the address?
• Do you have sufficient access permissions to the requested item?

The provided address is not in a recognized format. Please check the location bar for mistakes and try again.

The address specifies a protocol (e.g. wxyz://) the browser does not recognize, so the browser cannot properly connect to the site.

• Are you trying to access multimedia or other non-text services? Check the site for extra requirements.
• Some protocols may require third-party software or plugins before the browser can recognize them.

Though the site seems valid, the browser was unable to establish a connection.

• Could the site be temporarily unavailable? Try again later.
• Are you unable to browse other sites? Check the computer's network connection.
• Is your computer or network protected by a firewall or proxy? Incorrect settings can interfere with Web browsing.

The requested site did not respond to a connection request and the browser has stopped waiting for a reply.

• Could the server be experiencing high demand or a temporary outage? Try again later.
• Are you unable to browse other sites? Check the computer's network connection.
• Is your computer or network protected by a firewall or proxy? Incorrect settings can interfere with Web browsing.
• Still having trouble? Consult your network administrator or Internet provider for assistance.

The browser has stopped trying to retrieve the requested item. The site is redirecting the request in a way that will never complete.

• Have you disabled or blocked cookies required by this site?
• NOTE: If accepting the site's cookies does not resolve the problem, it is likely a server configuration issue and not your computer.

The site responded to the network request in an unexpected way and the browser cannot continue.

The network link was interrupted while negotiating a connection. Please try again.

The browser is operating in its offline mode and cannot connect to the requested item.

• Is the computer connected to an active network?
• Place the browser in online mode and try again.

The browser connected successfully, but the connection was interrupted while transferring information. Please try again.

• Are you unable to browse other sites? Check the computer's network connection.
• Still having trouble? Consult your network administrator or Internet provider for assistance.

The requested address specified a port (e.g. mozilla.org:80 for port 80 on mozilla.org) normally used for purposes other than Web browsing. The browser has canceled the request for your protection and security.

The browser is configured to use a proxy server, but the proxy could not be found.

• Is the browser's proxy configuration correct? Check the settings and try again.
• Is the computer connected to an active network?
• Still having trouble? Consult your network administrator or Internet provider for assistance.

The browser is configured to use a proxy server, but the proxy refused a connection.

• Is the browser's proxy configuration correct? Check the settings and try again.
• Does the proxy service allow connections from this network?
• Still having trouble? Consult your network administrator or Internet provider for assistance.