I know you can play the game at chrome://dino, but it doesn't evoke the same nostalgic feeling of a 10yr old me turning on aeroplane mode and spamming space bar to try and beat my brother's high score. Good memories.
https://addons.mozilla.org/en-US/firefox/addon/dino_game/
https://addons.mozilla.org/en-US/firefox/addon/dino_game/