diff --git a/src/devtools.html b/src/devtools.html
index 50a793829..e52494d13 100644
--- a/src/devtools.html
+++ b/src/devtools.html
@@ -22,8 +22,9 @@
 <div class="body">
     <p>
         <button id="console-clear" class="iconifiable" type="button"><span class="fa-icon">trash-o</span></button>
-        <button id="snfe-dump" type="button">Dump SNFE</button>
-        <button id="snfe-benchmark" type="button" disabled>Benchmark SNFE</button>
+        <button id="snfe-dump" type="button">SNFE: Dump</button>
+        <button id="snfe-benchmark" type="button" disabled>SNFE: Benchmark</button>
+        <button id="cfe-dump" type="button">CFE: Dump</button>
 </div>
 <div id="console" class="codeMirrorContainer"></div>
 
diff --git a/src/js/cosmetic-filtering.js b/src/js/cosmetic-filtering.js
index c5b89da95..58e215a09 100644
--- a/src/js/cosmetic-filtering.js
+++ b/src/js/cosmetic-filtering.js
@@ -1126,6 +1126,34 @@ FilterContainer.prototype.getFilterCount = function() {
 
 /******************************************************************************/
 
+FilterContainer.prototype.dump = function() {
+    return [
+        'Cosmetic Filtering Engine internals:',
+        `specific counts: ${this.specificFilters.size}`,
+        'generic counts:',
+        `  lowly.id.simple: ${this.lowlyGeneric.id.simple.size}`,
+        `  lowly.class.simple: ${this.lowlyGeneric.cl.simple.size}`,
+        `  lowly.id.complex: ${this.lowlyGeneric.id.complex.size}`,
+        `  lowly.class.complex: ${this.lowlyGeneric.cl.complex.size}`,
+        `  highly.simple: ${this.highlyGeneric.simple.dict.size}`,
+        `  highly.complex: ${this.highlyGeneric.complex.dict.size}`,
+        `lowly.id.simple: ${this.lowlyGeneric.id.simple.size}`,
+        ...Array.from(this.lowlyGeneric.id.simple).map(a => `  ###${a}`),
+        `lowly.id.complex: ${this.lowlyGeneric.id.complex.size}`,
+        ...Array.from(this.lowlyGeneric.id.complex.values()).map(a => `  ###${a}`),
+        `lowly.class.simple: ${this.lowlyGeneric.cl.simple.size}`,
+        ...Array.from(this.lowlyGeneric.cl.simple).map(a => `  ##.${a}`),
+        `lowly.class.complex: ${this.lowlyGeneric.cl.complex.size}`,
+        ...Array.from(this.lowlyGeneric.cl.complex.values()).map(a => `  ##.${a}`),
+        `highly.simple: ${this.highlyGeneric.simple.dict.size}`,
+        ...Array.from(this.highlyGeneric.simple.dict).map(a => `  ##${a}`),
+        `highly.complex: ${this.lowlyGeneric.id.simple.size}`,
+        ...Array.from(this.highlyGeneric.complex.dict).map(a => `  ##${a}`),
+    ].join('\n');
+};
+
+/******************************************************************************/
+
 const cosmeticFilteringEngine = new FilterContainer();
 
 export default cosmeticFilteringEngine;
diff --git a/src/js/devtools.js b/src/js/devtools.js
index b3eccb43c..b683270dd 100644
--- a/src/js/devtools.js
+++ b/src/js/devtools.js
@@ -54,7 +54,7 @@ uDom.nodeFromId('snfe-dump').addEventListener('click', ev => {
         const button = ev.target;
         button.setAttribute('disabled', '');
         vAPI.messaging.send('dashboard', {
-            what: 'sfneDump',
+            what: 'snfeDump',
         }).then(result => {
             log(result);
             button.removeAttribute('disabled');
@@ -70,7 +70,7 @@ vAPI.messaging.send('dashboard', {
         const button = ev.target;
         button.setAttribute('disabled', '');
         vAPI.messaging.send('dashboard', {
-            what: 'sfneBenchmark',
+            what: 'snfeBenchmark',
         }).then(result => {
             log(result);
             button.removeAttribute('disabled');
@@ -78,4 +78,15 @@ vAPI.messaging.send('dashboard', {
     });
 });
 
+uDom.nodeFromId('cfe-dump').addEventListener('click', ev => {
+        const button = ev.target;
+        button.setAttribute('disabled', '');
+        vAPI.messaging.send('dashboard', {
+            what: 'cfeDump',
+        }).then(result => {
+            log(result);
+            button.removeAttribute('disabled');
+        });
+});
+
 /******************************************************************************/
diff --git a/src/js/messaging.js b/src/js/messaging.js
index 3094a1286..4aa038a4c 100644
--- a/src/js/messaging.js
+++ b/src/js/messaging.js
@@ -137,7 +137,7 @@ const onMessage = function(request, sender, callback) {
         });
         return;
 
-    case 'sfneBenchmark':
+    case 'snfeBenchmark':
         µb.benchmarkStaticNetFiltering({ redirectEngine }).then(result => {
             callback(result);
         });
@@ -239,10 +239,14 @@ const onMessage = function(request, sender, callback) {
         }
         break;
 
-    case 'sfneDump':
+    case 'snfeDump':
         response = staticNetFilteringEngine.dump();
         break;
 
+    case 'cfeDump':
+        response = cosmeticFilteringEngine.dump();
+        break;
+
     default:
         return vAPI.messaging.UNHANDLED;
     }