How to unlock all levels in angry birds

To play Angry Birds online now, just visit chrome.angrybirds.com. Now this hack will unlock all levels in Angry Birds. Sometimes one may think that this level is so hard and very difficult to complete, so now those difficult levels can be skipped. This small javascript trick will unlock all levels, and thus, you can select any level and play it.

Unlock All Levels in Angry Birds
Start the game and once its fully loaded, just paste this javascript code in the address bar and press Enter.javascript: var i = 0; while (i<=69) { localStorage.setItem('level_star_'+i,'3'); i++; } window.location.reload();
and all levels are unlocked…

In case, you want all levels to be locked again (and feel like you are cheating), then use this code:
javascript: var i = 0; while (i<=69) { localStorage.setItem('level_star_'+i,'-1'); i++; } window.location.reload();
This is really a clever trick for those who just want to play the special Chrome only levels. Have fun.