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Your organization or Internet Service Provider may offer or require you to use a proxy to connect to the Internet. Learn more.

Your organization or Internet service provider may offer or require you to use a [https://wikipedia.org/wiki/Proxy_server proxy]. A proxy acts as an intermediary between your computer and the Internet. It intercepts all requests to the Internet to see if it can fulfill the request using its cache. Proxies are used to improve performance, filter requests, and hide your computer from the Internet to improve security. Proxies are often part of corporate firewalls. Connection settings to use a proxy can be set in Firefox [[T:optionsorpreferences]] as follows: # [[T:optionspreferences]] # {for not fx56}Select the {menu Advanced} panel and click the {menu Network} tab.{/for}{for fx56}In the {menu General} panel, go to the '''Network Proxy''' section. # Click {button Settings…}. The '''Connection Settings''' dialog will open. #; {for not fx56}[[Image:Fx55ConnectionSettingsDialog]]{/for}{for =fx56}[[Image:Fx56ConnectionSettingsDialog]]{/for}{for fx57}[[Image:Fx57ProxySettings]]{/for} * '''No proxy''': Choose this if you don't want to use a proxy. * '''Auto-detect proxy settings for this network''': Choose this if you want Firefox to automatically detect the proxy settings for your network. * '''Use system proxy settings''': Choose this if you want to use the proxy settings configured for your operating system. * '''Manual proxy configuration''': Choose this if you have a list of one or more proxy servers. Ask your system administrator for the configuration information. Each proxy requires a hostname and a port number. ** If the same proxy name and port number are used for all protocols, check '''Use this proxy server for all protocols'''. ** '''No Proxy For''': List of hostnames or IP addresses that will not be proxied. Use <local> to bypass proxying for all hostnames which do not contain periods. * '''Automatic proxy configuration URL''': Choose this if you have a [http://en.wikipedia.org/wiki/Proxy_auto-config proxy configuration] (.pac) file. Enter the URL and click okay to save changes and load the proxy configuration. ** {button Reload}: The reload button will load the currently available proxy configuration. {for fx60} {note}'''Note:''' The '''Connection Settings''' dialogue will also show extensions that control how Firefox connects to the internet. You can disable these extensions by clicking {button Disable Extension}. {/note} {/for}