diff --git a/scripts/autoconfig-all.cmd b/scripts/autoconfig-all.cmd
index e921ceb..31e4ec2 100644
--- a/scripts/autoconfig-all.cmd
+++ b/scripts/autoconfig-all.cmd
@@ -183,6 +183,9 @@ echo.
 call disable-autologon.cmd
 echo.
 
+call disable-systemproxy.cmd
+echo.
+
 powershell -command .\disable-soundscheme.ps1
 echo.
 
diff --git a/scripts/config/firefox/mozilla.cfg b/scripts/config/firefox/mozilla.cfg
index 422cc5b..88d5517 100644
--- a/scripts/config/firefox/mozilla.cfg
+++ b/scripts/config/firefox/mozilla.cfg
@@ -72,4 +72,5 @@ lockPref("signon.usage.hasEntry", false);
 defaultPref("toolkit.telemetry.pioneer-new-studies-available", false);
 defaultPref("toolkit.telemetry.reportingpolicy.firstRun", false);
 defaultPref("trailhead.firstrun.didSeeAboutWelcome", true);
+defaultPref("network.proxy.type", 0);
 
diff --git a/scripts/disable-systemproxy.cmd b/scripts/disable-systemproxy.cmd
new file mode 100644
index 0000000..675c40c
--- /dev/null
+++ b/scripts/disable-systemproxy.cmd
@@ -0,0 +1,14 @@
+@echo off
+
+echo ####### %0 #######
+
+echo disabling automatic proxy search ...
+reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings" ^
+  /v AutoDetect /t REG_DWORD /d 0 /f
+
+echo disabling system proxy use ...
+reg add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings" ^
+  /v ProxyEnable /t REG_DWORD /d 0 /f
+
+echo ####### %0 #######
+