Google's celebration of the 30th anniversary of Pac-Man last week swamped Mozilla's Firefox support forum with complaints regarding siren sounds and offbeat music.

Others asked safety vendors if they'd been infected among a virus.

On Friday, Google posted a JavaScript-based version of Pac-Man on its main search page as homage to the 1980 video game, the newest instance of what the company terms "doodles," which are typically static images that rejoices "on this day" events.
But the game freaked out some Firefox consumers, said, a Web development engineer at Mozilla.

"Unluckily, in the primary release, sounds started playing automatically a mistake or an homage to <bgsound>, I guess,” "Even if Google was open in a background tab or window, or in a hidden iframe formed by an add-on, the Pac Man music and sound effects would start. And that confused some people."