[Chrome Extension] Run all bookmarks in tabs by browserAction

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Javascript

HTML

extension

chrome

I'm fiddling around trying to make a very basic, simple extension for Chrome. The idea is to via a browser action call run all bookmarks listed in the bookmark bar.

As of now, the idea has resulted in this block of code:

<script>

var marks = [];
chrome.bookmarks.getTree(function(marks){
    chrome.browserAction.onClicked.addListener(function(tab){
    for(var i = 0; i < marks.length; i++)
    {
        chrome.tabs.create(tab((marks[i]));
    }
    }
</script>

Not quite sure exactly where I'm going wrong, but I have a hunch that I don't properly can round up the bookmarks this way. Could some kind soul point me in a more proper direction.