Add CSP setting

Author: K4sum1

browser/components/preferences/main.inc.xhtml

@@ -170,6 +170,13 @@
   </hbox>
   <description class="indent tip-caption" data-l10n-id="r3dfox-modern-desc"/>
 
+  <hbox align="center">
+    <checkbox id="r3dfoxcsp"
+              data-l10n-id="r3dfox-csp"
+              preference="security.csp.enable"/>
+  </hbox>
+  <description class="indent tip-caption" data-l10n-id="r3dfox-csp-desc"/>
+
   <hbox align="center">
     <checkbox id="r3dfoxe10s"
               data-l10n-id="r3dfox-e10s"

browser/components/preferences/main.js

@@ -81,6 +81,7 @@ Preferences.addAll([
   { id: "r3dfox.view.image", type: "bool" },
   { id: "widget.windows-style.modern", type: "bool" },
   { id: "browser.e10s.disabled", type: "bool" },
+  { id: "security.csp.enable", type: "bool",  inverted: true },
   { id: "accessibility.force_disabled", type: "int" },
 
   /* Tab preferences

browser/locales/en-US/browser/preferences/preferences.ftl

@@ -237,6 +237,11 @@ r3dfox-modern =
 
 r3dfox-modern-desc = Enable for standard Firefox Windows 10 UI on all platforms.
 
+r3dfox-csp =
+    .label = Disable Content Security Policy (CSP)
+
+r3dfox-csp-desc = CSP is a security feature, improperly designed websites may require disabling CSP.  Not recommended unless you know what you are doing.
+
 r3dfox-e10s =
     .label = Disable content multiprocess (e10s) (BETA)