diff --git a/application/basilisk/components/preferences/in-content/content.xul b/application/basilisk/components/preferences/in-content/content.xul
index fac864411d..b2e18d79d2 100644
--- a/application/basilisk/components/preferences/in-content/content.xul
+++ b/application/basilisk/components/preferences/in-content/content.xul
@@ -22,6 +22,16 @@
   <preference id="font.language.group"
               name="font.language.group"
               type="wstring"/>
+
+  <!-- JavaScript -->
+  <preference id="javascript.options.wasm"
+              name="javascript.options.wasm"
+              type="bool"/>
+#ifdef MOZ_WEBRTC
+  <preference id="media.peerconnection.enabled"
+              name="media.peerconnection.enabled"
+              type="bool"/>
+#endif
 </preferences>
 
 <script type="application/javascript"
@@ -187,3 +197,32 @@
             accesskey="&chooseButton.accesskey;"/>
   </hbox>
 </groupbox>
+
+<!-- JavaScript -->
+<groupbox id="javascriptGroup" data-category="paneContent" hidden="true">
+  <caption><label>&javascript.label;</label></caption>
+  <grid id="javascriptGrid">
+    <columns>
+      <column flex="1"/>
+      <column/>
+    </columns>
+    <rows id="javascriptRows">
+      <row id="javascriptRow1">
+        <vbox align="start">
+          <checkbox id="javascriptWasmPolicy"
+                    preference="javascript.options.wasm"
+                    label="&javascriptWasm.label;"
+                    accesskey="&javascriptWasm.accesskey;" />
+        </vbox>
+      </row>
+      <row id="javascriptRow2">
+        <vbox align="start">
+          <checkbox id="javascriptWebRTCPolicy"
+                    preference="media.peerconnection.enabled"
+                    label="&javascriptWebrtc.label;"
+                    accesskey="&javascriptWebrtc.accesskey;" />
+        </vbox>
+      </row>
+    </rows>
+  </grid>
+</groupbox>
diff --git a/application/basilisk/locales/en-US/chrome/browser/preferences/content.dtd b/application/basilisk/locales/en-US/chrome/browser/preferences/content.dtd
index d1d83b3bc4..bca4824f5a 100644
--- a/application/basilisk/locales/en-US/chrome/browser/preferences/content.dtd
+++ b/application/basilisk/locales/en-US/chrome/browser/preferences/content.dtd
@@ -43,3 +43,12 @@
 <!ENTITY  playDRMContent.label         "Play DRM content">
 <!ENTITY  playDRMContent.accesskey     "P">
 <!ENTITY  playDRMContent.learnMore.label "Learn more">
+
+<!ENTITY  javascript.label            "JavaScript">
+
+<!ENTITY  javascriptWasm.label           "Enable WebAssembly (WASM)">
+<!ENTITY  javascriptWasm.accesskey       "y">
+#ifdef MOZ_WEBRTC
+<!ENTITY  javascriptWebrtc.label           "Enable WebRTC">
+<!ENTITY  javascriptWebrtc.accesskey       "R">
+#endif
diff --git a/application/basilisk/locales/jar.mn b/application/basilisk/locales/jar.mn
index 16e8a5fee7..495b3d8c78 100644
--- a/application/basilisk/locales/jar.mn
+++ b/application/basilisk/locales/jar.mn
@@ -57,7 +57,7 @@
     locale/browser/preferences/applicationManager.properties (%chrome/browser/preferences/applicationManager.properties)
     locale/browser/preferences/colors.dtd             (%chrome/browser/preferences/colors.dtd)
     locale/browser/preferences/cookies.dtd            (%chrome/browser/preferences/cookies.dtd)
-    locale/browser/preferences/content.dtd            (%chrome/browser/preferences/content.dtd)
+*   locale/browser/preferences/content.dtd            (%chrome/browser/preferences/content.dtd)
     locale/browser/preferences/connection.dtd         (%chrome/browser/preferences/connection.dtd)
     locale/browser/preferences/applications.dtd       (%chrome/browser/preferences/applications.dtd)
     locale/browser/preferences/fonts.dtd              (%chrome/browser/preferences/fonts.dtd)