1. import FreeCADGui
2. from PySide2 import QtCore, QtWidgets
3.  
4. try:
5.     from PySide2.QtWebEngineWidgets import QWebEngineView
6. except ImportError:
7.     QtWidgets.QMessageBox.critical(None, "Error", "QtWebEngineWidgets is not available.")
8.     raise
9.  
10. class WebBrowserDockWidget(QtWidgets.QDockWidget):
11.     def __init__(self, parent=None):
12.         super(WebBrowserDockWidget, self).__init__('Web Browser', parent)
13.         self.setAllowedAreas(QtCore.Qt.RightDockWidgetArea)
14.  
15.         # Create a web view
16.         self.web_view = QWebEngineView()
17.         self.web_view.load(QtCore.QUrl("https://www.example.com"))  # Replace with your desired URL
18.  
19.         # Set the web view as the main widget of the dock widget
20.         self.setWidget(self.web_view)
21.  
22. def runMacro():
23.     mw = FreeCADGui.getMainWindow()
24.  
25.     # Create and add the dock widget
26.     dock_widget = WebBrowserDockWidget(mw)
27.     mw.addDockWidget(QtCore.Qt.RightDockWidgetArea, dock_widget)
28.     dock_widget.show()
29.  
30. runMacro()