Happy Birthday Surprise is a free Chrome extension developed by connor2033. This add-on is designed to surprise your friends on their birthday by taking over their browser with a "Happy Birthday" photo and playing the classic happy birthday song on new tabs. The extension also includes some hidden Easter eggs for added fun.

Upon installation, Happy Birthday Surprise replaces the default new tab page with a festive birthday-themed photo and automatically plays the happy birthday song. It creates a joyful atmosphere and adds a touch of celebration to the browsing experience. Additionally, clicking on the extension's icon opens a popup window that provides fun links to explore on your birthday, adding an extra element of entertainment.

If you're looking for a simple and delightful way to surprise your friends on their special day, Happy Birthday Surprise is a great choice. Install it and let the birthday celebrations begin!