How to Set Up Multiple Homepage in Mozilla Firefox Open your Firefox browser on your computer. Move your mouse to the top of the screen, Right Click on it and select menu bar. This displays menu bar. Now, click “Tools” and then “Options” on the main menu. The Options window will open. Select the “General” tab. In the Startup section you will see an option that controls the homepage when Firefox starts. Select ” Show my Home Page” from the drop-down menu. Type in the URL of the desired page. To Set Multiple Home Page, Add a Pipe Line next to the First URL and type in the Second URL Click the “OK.” button when you are done adding multiple URL’s. Restart firefox to see the changes. As you can see multiple home pages has been set in mozilla firefox.