Question

Hello everyone i have an question about firefox add-on:

How i can get the body content from a tab, for example.

var content = require("tabs").activeTab.documentContent.body.innerHTML;

Thanks alot.

Answer 1

The Add-on SDK doesn’t allow direct access to the tab contents – the idea is that the add-on and the tab might end up living in different processes eventually. What you do is injecting a content script into the tab to get you the necessary data, something like this:

var tab = require("tabs").activeTab;
tab.attach({
  contentScript: "self.postMessage(document.body.innerHTML);",
  onMessage: function(data)
  {
    console.log("Tab data received: " + data);
  }
});