anchor.diff:            expect(e is DatabaseError, isTrue);
             transaction = null;
           });
  -      });
  +      }, testOn: "!firefox");
   
         test('add_twice', () async {
           await _setUp();
  
positive.code:             transaction = null;
            });
          });
        });
  
        // put twice should be fine
        test('put_twice', () async {
  
negative.code:           //print(e);
            transaction = null;
          });
        }, testOn: "!firefox");
      });
  
      group('key_path_non_auto', () {
  