javascript - window.open losing control in click event handler in firefox -

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i'm trying open new window using window.open, in event handler click event:

var onbuttonclick = function() {     alert('start');     window.open('http://www.google.com', 'goog', 'width=800,height=400');     alert('done'); }; var element = document.getelementbyid("button"); element.addeventlistener('click', onbuttonclick);

http://jsfiddle.net/egnpe/

i expect alert saying "start", alert saying "end", , window open. works in chrome on linux in firefox 20.0 on ubunutu, first alert, suggesting somewhere in window.open method, control lost.

if popup blocker issue, i'd expect notification popup blocked, , window.open should return null , continue throw second alert.

any ideas? misusing event handlers or window.open method?

after disabling firefox extensions, code above works expected. issue may specific own machine , configuration.


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