+Value (string):
+```
+<enabled/>
+<data id="Proxy_ConnectionType" value="none | system | manual | autoDetect | autoConfig"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_HTTPProxy
+```
+Value (string):
+```
+<enabled/>
+<data id="Proxy_HTTPProxy" value="httpproxy.example.com"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_UseHTTPProxyForAllProtocols
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_SSLProxy
+```
+Value (string):
+```
+<enabled/>
+<data id="Proxy_SSLProxy" value="sslproxy.example.com"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_SOCKSProxy
+```
+Value (string):
+```
+<enabled/>
+<data id="Proxy_SOCKSProxy" value="socksproxy.example.com"/>
+<data id="Proxy_SOCKSVersion" value="4 | 5"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_AutoConfigURL
+```
+Value (string):
+```
+<enabled/>
+<data id="Proxy_AutoConfigURL" value="URL_TO_AUTOCONFIG"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_Passthrough
+```
+Value (string):
+```
+<enabled/>
+<data id="Proxy_Passthrough" value="<local>"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_AutoLogin
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_UseProxyForDNS
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI (Old way):
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Proxy
+```
+Value (string):
+```
+<enabled/>
+<data id="ProxyLocked" value="true | false"/>
+<data id="ConnectionType" value="none | system | manual | autoDetect | autoConfig"/>
+<data id="HTTPProxy" value="httpproxy.example.com"/>
+<data id="UseHTTPProxyForAllProtocols" value="true | false"/>
+<data id="SSLProxy" value="sslproxy.example.com"/>
+<data id="FTPProxy" value="ftpproxy.example.com"/>
+<data id="SOCKSProxy" value="socksproxy.example.com"/>
+<data id="SOCKSVersion" value="4 | 5"/>
+<data id="AutoConfigURL" value="URL_TO_AUTOCONFIG"/>
+<data id="Passthrough" value="<local>"/>
+<data id="AutoLogin" value="true | false"/>
+<data id="UseProxyForDNS" value="true | false"/>
+```
+#### macOS
+```
+<dict>
+ <key>Proxy</key>
+ <dict>
+ <key>Mode</key>
+ <string>none | system | manual | autoDetect | autoConfig</string>
+ <key>Locked</key>
+ <true> | </false>
+ <key>HTTPProxy</key>
+ <string>https://httpproxy.example.com</string>
+ <key>UseHTTPProxyForAllProtocols</key>
+ <true> | </false>
+ <key>SSLProxy</key>
+ <string>https://sslproxy.example.com</string>
+ <key>FTPProxy</key>
+ <string>https://ftpproxy.example.com</string>
+ <key>SOCKSProxy</key>
+ <string>https://socksproxy.example.com</string>
+ <key>SOCKSVersion</key>
+ <string>4 | 5</string>
+ <key>Passthrough</key>
+ <string><local>></string>
+ <key>AutoConfigURL</key>
+ <string>URL_TO_AUTOCONFIG</string>
+ <key>AutoLogin</key>
+ <true> | </false>
+ <key>UseProxyForDNS</key>
+ <true> | </false>
+ </dict>
+</dict>
+```
+#### policies.json