Make tab close on right click configurable

qutebrowser/config/configdata.py

@@ -401,6 +401,10 @@ DATA = OrderedDict([
          SettingValue(types.Bool(), 'true'),
          "Whether tabs should be movable."),
 
+        ('close-on-right-click',
+         SettingValue(types.Bool(), 'false'),
+         "Whether tabs should close when right-clicked."),
+
         ('close-buttons',
          SettingValue(types.Bool(), 'false'),
          "Whether tabs should have close-buttons."),

qutebrowser/widgets/tabwidget.py

@@ -128,7 +128,8 @@ class TabBar(QTabBar):
 
     def mousePressEvent(self, e):
         """Override mousePressEvent to emit tabCloseRequested on rightclick."""
-        if e.button() != Qt.RightButton:
+        if (e.button() != Qt.RightButton or
+                not config.get('tabbar', 'close-on-right-click')):
             super().mousePressEvent(e)
             return
         idx = self.tabAt(e.pos())