diff --git a/src/static/options/options.css b/src/static/options/options.css
index 4ab69b3..a3cd7ab 100644
--- a/src/static/options/options.css
+++ b/src/static/options/options.css
@@ -24,11 +24,15 @@
   cursor: pointer;
 }
 
-.option {
+.option, .kill-switch-text {
   margin: 4px 0;
   line-height: 1.8em;
 }
 
+.kill-switch-text {
+  color: red;
+}
+
 .help {
   cursor: help;
   border-bottom: dashed 1px gray;
diff --git a/src/static/options/options.html b/src/static/options/options.html
index f22fb30..91a8205 100644
--- a/src/static/options/options.html
+++ b/src/static/options/options.html
@@ -39,6 +39,7 @@
         </a>
       </div>
       <form>
+        <div class="kill-switch-text" id="kill-switch-warning" hidden data-i18n="killswitchwarning"></div>
         <div class="option"><input type="checkbox" id="list"> <label for="list" data-i18n="list"></label></div>
         <div class="option"><input type="checkbox" id="thread"> <label for="thread" data-i18n="thread"></label></div>
         <div class="option"><input type="checkbox" id="threadall"> <label for="threadall" data-i18n="threadall"></label></div>