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Creator of Firefox and Thunderbird (crossword clue)

7 squares · NYT Crossword · December 22, 2025 · The answer stays hidden until you tap it

This clue appeared in the NYT Crossword on Monday, December 22, 2025 (3 Down). The answer is hidden below until you want it. Monday puzzles are the easiest of the week, so the clue is likely a plain definition.

Answer length: 7 squares

First letter

M _ _ _ _ _ _

First and last letters

M _ _ _ _ _ A

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About the answer

MOZILLA as a word: the mascot of Netscape Communications Corporation and subsequently the Mozilla Foundation; a free software community founded in 1998 by members of Netscape.

MOZILLA has been an answer once in the NYT Crossword and Mini puzzles we have on file, which go back to October 23, 2025.

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