Create a 2D digital illustration of the [FIREFOX] logo in a colorful cartoon style with bold black outlines. The icon design should feature playful, vibrant solid colors such as pink, teal, orange, yellow, and purple, applied in a flat, bold way. Give the shapes a slightly exaggerated, bubbly form with rounded edges and fun details like starbursts, stripes, or spark effects if relevant. Keep the illustration simple and stylized with a hand-drawn look. Use thick outlines to emphasize form. Vector friendly. White background. Square aspect ratio.