Question:
How to detect when a page is loaded (in any tab) with a firefox extension (automatically, no start-button or anything) (and display an alert message for example) ?
Solution:1
https://developer.mozilla.org/en/Code_snippets/On_page_load
Dont miss this part: "
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" 1.
"
Solution:2
function startup() { mainWindow = window.QueryInterface(Components.interfaces.nsIInterfaceRequestor) .getInterface(Components.interfaces.nsIWebNavigation) .QueryInterface(Components.interfaces.nsIDocShellTreeItem) .rootTreeItem .QueryInterface(Components.interfaces.nsIInterfaceRequestor) .getInterface(Components.interfaces.nsIDOMWindow); mainWindow.getBrowser().addEventListener("load", listener, false); // Sidebar is loaded and mainwindow is ready } var listener = function(e){ alert("Hai"); //To remove event listener //mainWindow.getBrowser().removeEventListener("load",listener, false); } window.addEventListener("load", startup, false); This is code is enough for this purpose.
Though this is late, I'm answering this question to minimize the search time.
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