diff --git a/css/options.css b/css/options.css
index bbf3f42..9fa666f 100644
--- a/css/options.css
+++ b/css/options.css
@@ -12,6 +12,10 @@ select {
   margin-bottom: 10px;
 }
 
+textarea {
+  margin-bottom: 10px;
+}
+
 pre {
   left: -10px;
   top: 10px;
diff --git a/js/background.js b/js/background.js
index 6192283..92bc039 100644
--- a/js/background.js
+++ b/js/background.js
@@ -77,7 +77,8 @@
     theme: 'sunburst',
     font: 'Inconsolata',
     fontSize: 'medium',
-    lineNumbers: true
+    lineNumbers: true,
+    ignoreLanguages: ''
   };
 
   const OPTIONS = Object.keys(OPTIONS_DEFAULTS);
@@ -121,6 +122,17 @@
     return filename.split('.').pop();
   }
 
+  function isLanguageIgnored(language) {
+    var ignored = localStorage.getItem('ignoreLanguages').split(/[\s,]+/);
+    var index, length = ignored.length;
+    for (index = 0; index < length; index++) {
+      if (ignored[index].toLowerCase() === language) {
+        return true;
+      }
+    }
+    return false;
+  }
+
   function getFragmentFromUrl(url) {
     var fragment = /#ft=(\w+)/.exec(url);
     return fragment && fragment[1];
@@ -156,7 +168,7 @@
     var filename = getFilenameFromUrl(details.url);
     var extension = getExtensionFromFilename(filename);
     var language = detectLanguage(contentType, fragment, filename, extension);
-    if (!language) {
+    if (!language || isLanguageIgnored(language)) {
       return;
     }
 
diff --git a/js/options.js b/js/options.js
index d5272ec..5dd2f94 100644
--- a/js/options.js
+++ b/js/options.js
@@ -2,6 +2,7 @@
   function id(a) { return a }
   function eq(b) { return function(a) { return a === b } }
   function val(obj, key) { return obj[key] }
+  function noop() {}
   function set(sel, path, fn) {
     var parts = path.split('.');
     var target = parts[parts.length-1];
@@ -43,6 +44,12 @@
         codeEl.innerHTML = codeEl.textContent;
         hljs.highlightBlock(codeEl);
       }
+    },
+    ignoreLanguages: {
+      selector: '#ignore-languages',
+      value: 'value',
+      decode: id,
+      render: noop
     }
   };
 
diff --git a/options.html b/options.html
index d1b00fc..77b7bf4 100644
--- a/options.html
+++ b/options.html
@@ -91,6 +91,8 @@ <h3>Select your font size</h3>
         <option value="x-large">x-large</option>
         <option value="xx-large">xx-large</option>
       </select>
+      <h3>Ignore Languages</h3>
+      <textarea id="ignore-languages"></textarea>
       <h3>Line numbers:<input id="line-numbers" type="checkbox"></h3>
       <pre id="code" class="go">
 package main