Go to the chrome directory and (a) create a directory called img and (b) create a file called userContent.css. It should open your Firefox profile directory, which is usually in your $HOME directory.Ĭreate a directory called chrome inside the opened directory, if it's not already there. View the section 'Application Basics' ➔ Profile Directory (or 'Profile Folder' on MacOS) ➔ click the button 'Open Directory' (or 'Show in Finder' on MacOS): Go to about:support in the address bar.In the drop-down menu beside Homepage And New Windows, select Custom URLs. In the Options or Preferences tab, click Home and look for the New Windows And Tabs section. Add-ons can surely do that, but there's a better approach: We can create a CSS file and tell Firefox to load that file when it starts. In any window, click the hamburger icon (three horizontal lines), and select Options on a Windows or Linux machine. In Firefox, there's no way to change the background image of the home page (new tab) from the Settings.

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