You mean you want to replace the logo with a custom image?

1. Type about:support in the address bar and press Enter. 2. Click the Show Folder button. 3. In the Windows Explorer window that opens, create a new folder called chrome — make sure you get the spelling right and note that the name is case-sensitive. 4. Launch a text editor like Notepad and paste the following in a new file.

@-moz-document url("about:home") {
#brandLogo { background-image: url("brandlogo.png") !important; }
}

5. Save the file to your desktop as "userContent.css" — including the quotes. Again, be sure to spell it correctly and note that the file name is case-sensitive. 6. Move the file from the desktop into the chrome folder you created earlier. 7. Create a 192×192 PNG image named brandlogo.png and place it in the chrome folder. 8. Restart Firefox for the change to take effect.

If you prefer not to see snippets on the about:home page then you can set the browser.aboutHomeSnippets.updateUrl pref to an empty string on the about:config page.

Delete the storage\moz-safe-about+home folder in the Firefox profile folder with Firefox closed to remove snippets stored in IndexedDB and make Firefox use a default set.

You can use this button to go to the currently used Firefox profile folder:

• Help > Troubleshooting Information > Profile Directory: Show Folder (Linux: Open Directory; Mac: Show in Finder)

You can reset the browser.aboutHomeSnippets.updateUrl pref to the default value to re-enable the snippets.

setting the browser.abouthomeshippets.updateurl to an empty string on the about:config page and deleting the folder moz-safe-about+home worked. I now get the big orange Firefox logo instead of the game. Thanks.