.onload called multiple times from Firefox extension

Question

I\'m developing a Firefox extension and have the following code:

function initialize() { 
    // For accessing browser window from sidebar code.
    var mainWind         


        

Answer 1

From https://developer.mozilla.org/en/Code_snippets/On_page_load

Current Firefox trunk nightlies will fire the onPageLoad function for not only documents, but xul:images (favicons in tabbrowser). If you only want to handle documents, ensure aEvent.originalTarget.nodeName == "#document"

If you're still seeing extraneous 'load' events firing, you may want to inspect the event target to figure out what's being loaded, and use similar logic to avoid calling your extension's logic in certain specific cases.