Have only one tab open that’s at the page you want to be your home page.
Click the button that says ‘pale moon’ at the top left-hand corner.
Select ‘options’.
Select ‘options’ in the new drop down box that opens.
You can either click ‘use current pages’ or put the web address in the white bar that says ‘home page’.
Click ‘OK’
And you’re done!
thanks, that worked