diff --git a/dist/SysTray-X-32bit.nsi b/dist/SysTray-X-32bit.nsi
index 1b82491..724e907 100644
--- a/dist/SysTray-X-32bit.nsi
+++ b/dist/SysTray-X-32bit.nsi
@@ -113,12 +113,18 @@ Section "Install"
       FileClose $0
     end:
   ${Else}
-  
-	${If} ${FileExists} `$PROGRAMFILES\Mozilla Thunderbird\*.*`
-	  SetOutPath "$PROGRAMFILES\Mozilla Thunderbird\distribution\extensions"
-	  File "..\systray-x@Ximi1970.xpi"
-	${EndIf}
 
+    ${If} ${FileExists} `$PROGRAMFILES\Mozilla Thunderbird\*.*`
+      SetOutPath "$PROGRAMFILES\Mozilla Thunderbird\distribution\extensions"
+      File "..\systray-x@Ximi1970.xpi"
+
+      SetOutPath "$PROGRAMFILES\Mozilla Thunderbird\distribution"
+      ${If} ${FileExists} `$PROGRAMFILES\Mozilla Thunderbird\distribution\policies.json`
+        File "policies.json"
+      ${Else}
+        File "policies.json"
+      ${EndIf}
+    ${EndIf}
   ${EndIf}
 
   ;
diff --git a/dist/SysTray-X-64bit.nsi b/dist/SysTray-X-64bit.nsi
index d4ff959..c12b60c 100644
--- a/dist/SysTray-X-64bit.nsi
+++ b/dist/SysTray-X-64bit.nsi
@@ -118,11 +118,25 @@ Section "Install"
     ${If} ${FileExists} `$PROGRAMFILES32\Mozilla Thunderbird\*.*`
       SetOutPath "$PROGRAMFILES32\Mozilla Thunderbird\distribution\extensions"
       File "..\systray-x@Ximi1970.xpi"
+
+      SetOutPath "$PROGRAMFILES32\Mozilla Thunderbird\distribution"
+      ${If} ${FileExists} `$PROGRAMFILES32\Mozilla Thunderbird\distribution\policies.json`
+        File "policies.json"
+      ${Else}
+        File "policies.json"
+      ${EndIf}
     ${EndIf}
     
     ${If} ${FileExists} `$PROGRAMFILES64\Mozilla Thunderbird\*.*`
       SetOutPath "$PROGRAMFILES64\Mozilla Thunderbird\distribution\extensions"
       File "..\systray-x@Ximi1970.xpi"
+
+      SetOutPath "$PROGRAMFILES64\Mozilla Thunderbird\distribution"
+      ${If} ${FileExists} `$PROGRAMFILES64\Mozilla Thunderbird\distribution\policies.json`
+        File "policies.json"
+      ${Else}
+        File "policies.json"
+      ${EndIf}
     ${EndIf}
 
   ${EndIf}
diff --git a/dist/policies.json b/dist/policies.json
new file mode 100644
index 0000000..c92076d
--- /dev/null
+++ b/dist/policies.json
@@ -0,0 +1,10 @@
+ {
+	"policies": {
+		"ExtensionSettings": {
+			"systray-x@Ximi1970": {
+				"installation_mode": "normal_installed",
+				"install_url": "file:///C:/Program Files/Mozilla Thunderbird/distribution/extensions/systray-x@Ximi1970.xpi"
+			}
+		}
+	}
+}