How do I download the PWI Fund extension on Firefox? Project World November 15, 2018 16:43 Check out our PWI Fund browser walkthroughs in our Resource Library! They’ll have all the instructions you need Related articles Do I have to use a specific browser for PWI Fund’s extension to work? How do I see how much money I’ve raised through PWI Fund? Can I refer people to PWI Fund? Comments 0 comments Please sign in to leave a comment.