Firefox message: Connection to proxy server rejected

If Firefox reports that the proxy server connection has been reset, you can try some settings to return to websites. We give you tips.

Remedy: Firefox proxy server connection rejected

If a proxy server connection fails in Firefox, this can have many causes and there are various possible solutions. In most cases, one of the following steps will help you:

• Firefox usually shows the error message together with a button "Try again". Click this or press F5 to go back to the page.
• If the error persists, press [Alt] and navigate via "Tools" -> "Settings" -> "Advanced" -> "Network" under "Connection" to "Settings".
• Activate the box "No proxy", confirm twice with "OK" and try to access the website again.
• If that doesn't work, restart Firefox and try again.
• Alternatively, if you use a proxy, check the box "Automatically detect the proxy settings for this network".
• If that doesn't work either, activate "Use system proxy settings" and solve any problems with our tips on connecting a proxy server.
• A Firefox update may also help.
• Sometimes Firefox add-ons manipulate the connection settings. Harmful addwares or other hijackers in particular are often to blame for this.
• We help you remove the adware from Firefox and from your system.
• In the case of stubborn adware, the AdwCleaner and the CHIP instructions will help you get rid of the annoying software.

What you can do if Firefox does not trust a connection, loads a page slowly and how you can read websites offline can be found in further CHIP online practical tips.