We all know what Angry Birds is and how popular it is. And days ago Rovio and Chrome just released Angry Birds for Chrome. It's based on HTML5 and can be played directly at chrome.angrybirds.com in your browsers (It may also works in Firefox4. Not sure).

There are 7 new levels in Angry Birds for Chrome. As a player who has completed the normal levels again and again with your cell phone, PC or ipad, you may wish to try the new levels directly. Wes Bos, a JavaScript / HTML5 developer, has brought us a way to hack the game and unlock all levels based on the Chrome browser cache.

To get access to all levels in Chrome Angry Birds, just copy and paste the following line into your browser’s address bar(After you have opened the game page).

javascript: var i = 0; while (i<=69) { localStorage.setItem('level_star_'+i,'3'); i++; } window.location.reload();

To set all levels to locked, simply copy and paste this into your address bar:

javascript: var i = 1; while (i<=69) { localStorage.setItem('level_star_'+i,'-1'); i++; } window.location.reload();

He also explained how this works:

In the talk Rovio did at Google IO, they mentioned they were using HTML5′s LocalStorage. If you open up Web Inspector in chrome, you’ll see they are keeping track of your score and stars with localstorage. Lucky for us, that means we can use setItem() set all 70 levels to 3 and get access to them all.

If you like this kind of stuff, you could follow his twitter for more.

Also braaaiins shared a tip on reddit to open locked Angry Birds on Android cell phones:

• Load up Angry Birds and go to the world select screen.
• Centre a locked world on the screen.
• Push back button all the way out of Angry Birds.
• Load Angry Birds back up and when the "Play" button appears tap the shit out of that motherfucker.
• Great success! You should be inside the locked worlds stage select screen.
• To keep it unlocked just pass the first world.

Well, choose your way to knock the sick pigs :)