diff --git a/common/content/events.js b/common/content/events.js
index 85084d44..ec73667f 100644
--- a/common/content/events.js
+++ b/common/content/events.js
@@ -788,8 +788,6 @@ const Events = Module("events", {
             let stop = false;
             let mode = modes.getStack(0);
 
-            util.dump(String(mode), key);
-
             let win = document.commandDispatcher.focusedWindow;
             if (win && win.document && "designMode" in win.document && win.document.designMode == "on" && !config.isComposeWindow)
                 stop = true;
@@ -810,8 +808,6 @@ const Events = Module("events", {
             }
             // handle Escape-all-keys mode (Ctrl-q)
 
-            util.dump(String(mode), key, stop);
-
             if (stop) {
                 this._input.buffer = "";
                 return null;
diff --git a/common/content/modes.js b/common/content/modes.js
index 90c7da0c..796ee311 100644
--- a/common/content/modes.js
+++ b/common/content/modes.js
@@ -272,7 +272,6 @@ const Modes = Module("modes", {
     },
 
     pop: function pop(mode) {
-        util.dumpStack(mode);
         while (this._modeStack.length > 1 && this.main != mode) {
             let a = this._modeStack.pop();
             this.set(this.topOfStack.main, this.topOfStack.extended, this.topOfStack.params,