| Index: lib/inspectorObserver.js | 
| =================================================================== | 
| --- a/lib/inspectorObserver.js | 
| +++ b/lib/inspectorObserver.js | 
| @@ -32,8 +32,7 @@ | 
| let stringBundle = Services.strings.createBundle("chrome://elemhidehelper/locale/global.properties?" + Math.random()); | 
| let result = stringBundle.GetStringFromName("inspector.button.tooltiptext"); | 
| - delete this.inspectorButtonTooltip; | 
| - this.__defineGetter__("inspectorButtonTooltip", function() result); | 
| + Object.defineProperty(this, "inspectorButtonTooltip", {value: result, enumerable: true}); | 
| return this.inspectorButtonTooltip; | 
| }, |