diff --git a/toolkit/components/places/src/nsNavHistoryQuery.cpp b/toolkit/components/places/src/nsNavHistoryQuery.cpp
index 5444c6d10b2a..ea5e5fe5db1d 100644
--- a/toolkit/components/places/src/nsNavHistoryQuery.cpp
+++ b/toolkit/components/places/src/nsNavHistoryQuery.cpp
@@ -730,6 +730,13 @@ NS_IMETHODIMP nsNavHistoryQuery::GetHasBeginTime(PRBool* _retval)
   return NS_OK;
 }
 
+/* readonly attribute PRTime absoluteBeginTime; */
+NS_IMETHODIMP nsNavHistoryQuery::GetAbsoluteBeginTime(PRTime* _retval)
+{
+  *_retval = nsNavHistory::NormalizeTime(mBeginTimeReference, mBeginTime);
+  return NS_OK;
+}
+
 /* attribute PRTime endTime; */
 NS_IMETHODIMP nsNavHistoryQuery::GetEndTime(PRTime *aEndTime)
 {
@@ -763,6 +770,13 @@ NS_IMETHODIMP nsNavHistoryQuery::GetHasEndTime(PRBool* _retval)
   return NS_OK;
 }
 
+/* readonly attribute PRTime absoluteEndTime; */
+NS_IMETHODIMP nsNavHistoryQuery::GetAbsoluteEndTime(PRTime* _retval)
+{
+  *_retval = nsNavHistory::NormalizeTime(mEndTimeReference, mEndTime);
+  return NS_OK;
+}
+
 /* attribute string searchTerms; */
 NS_IMETHODIMP nsNavHistoryQuery::GetSearchTerms(nsAString& aSearchTerms)
 {