Logo do’s
Do place official logo files within your design.
The letters and surrounding rectangle makeup the logo and must always appear together.
Do make sure the logo has enough contrast with the background.
Do place the logo on a non-busy area within a photo.
Do make sure you always have the highlight and the letters present.
When you’re making a sentence with the word Mozilla, make sure to spell out the full word and not rely on the graphic.
Logo don’ts
Do not make your own logo.
Do not use the word Mozilla without its surrounding box.
Do not use the black rectangle version on dark backgrounds; use the white rectangle version in that case.
Do not remove the highlight from the letters, ever.
Do not change the color of the logo, ever.
Do not place the logo on a busy background.
Do not add any elements to the logo.
Do not change any element of the logo–the letter nor the highlight shape around them.
Do not make sentences with the logo inside.