1 files changed, 7 insertions, 0 deletions
diff --git a/toolkit/content/widgets/timepicker.js b/toolkit/content/widgets/timepicker.js
index f438e9ec6..544032e9f 100644
--- a/toolkit/content/widgets/timepicker.js
+++ b/toolkit/content/widgets/timepicker.js
@@ -218,6 +218,7 @@ function TimePicker(context) {
     },
     _attachEventListeners() {
       window.addEventListener("message", this);
+      document.addEventListener("mousedown", this);
     },
 
     /**
@@ -231,6 +232,12 @@ function TimePicker(context) {
           this.handleMessage(event);
           break;
         }
+        case "mousedown": {
+          // Use preventDefault to keep focus on input boxes
+          event.preventDefault();
+          event.target.setCapture();
+          break;
+        }
       }
     },