Removed pointless event capturings. Fixed misplaced returns.

ubiquity/chrome/content/ubiquity.js

@@ -64,15 +64,15 @@ function Ubiquity(msgPanel, textBox, cmdManager) {
 
   window.addEventListener("mousemove", this, false);
 
-  textBox.addEventListener("keydown", this, true);
-  textBox.addEventListener("keypress", this, true);
-  textBox.addEventListener("keyup", this, true);
+  textBox.addEventListener("keydown", this, false);
+  textBox.addEventListener("keypress", this, false);
+  textBox.addEventListener("keyup", this, false);
   if (this.Utils.OS === "WINNT") textBox.addEventListener("blur", this, false);
 
   msgPanel.addEventListener("popupshowing", this, false);
   msgPanel.addEventListener("popupshown", this, false);
   msgPanel.addEventListener("popuphidden", this, false);
-  msgPanel.addEventListener("click", this, true);
+  msgPanel.addEventListener("click", this, false);
 
   var self = this;
   self.__onSuggestionsUpdated = function U__onSuggestionsUpdated() {

ubiquity/modules/cmdmanager.js

@@ -118,8 +118,8 @@ function CommandManager(cmdSource, msgService, parser,
   if (parser) this._loadCommands();
   this.setPreviewState("no-suggestions");
 
-  suggDoc.addEventListener("click", this, true);
-  suggDoc.addEventListener("DOMMouseScroll", this, true);
+  suggDoc.addEventListener("click", this, false);
+  suggDoc.addEventListener("DOMMouseScroll", this, false);
 }
 
 CommandManager.prototype = {
@@ -135,16 +135,15 @@ CommandManager.prototype = {
         if (this.__hilitedIndex === index) return;
         this.__hilitedIndex = index;
         this.__lastAsyncSuggestionCb();
-        break;
-      }
+      } break;
       case "DOMMouseScroll": {
         this[event.detail < 0 ? "moveIndicationUp" : "moveIndicationDown"]();
         this.__lastAsyncSuggestionCb();
-        break;
-      }
-      event.preventDefault();
-      event.stopPropagation();
+      } break;
+      default: return;
     }
+    event.preventDefault();
+    event.stopPropagation();
   },
 
   setPreviewState: function CM_setPreviewState(state) {

ubiquity/modules/utils.js

@@ -1222,7 +1222,6 @@ function regexp(pattern, flags) {
   } catch (e if e instanceof SyntaxError) {
     return RegExp(regexp.quote(pattern), flags);
   }
-  return RegExp();
 }
 
 // === {{{ Utils.regexp.quote(string) }}} ===