Games Puzzles Sudoku and Crosswords is a Firefox extension that adds a button on the Add-On bar, allowing users to easily access several sudoku and crosswords based puzzle games.
It gives you access to the following Sudoku variants: Killer Sudoku, Irregular Sudoku, Sudoku 16x16, Sudoku 6x6, Windoku, Mathdoku or Calcudoku, Futoshiki, Diagonal Sudoku, Greater Than or Ineuqality Sudoku, Multi Sudoku, Alphabet Sudoku and Multiplayer Sudoku.
The following Crosswords variants are also provided: US Crossword, Daily Crossword, Classic Crossword, Everyday Crossword, Code Cracker, Anagram Bits N Pieces, Crossword Quiz, Cryptic Code Math, No Clue, Pick N Choose amd Roman Numeral Crossword.
Games Puzzles Sudoku and Crosswords is an open source add-on designed to work with Mozilla Firefox 19.0 and later. This add-on does not require a browser restart.