Open a link in new tab

I'm using this javascript code in firefox addon:

window.open(link);

It opens a link in a new Window. I was looking for function to open a link in a new tab but haven't found it. I found that this is in defined in firefox settings. I looked into my settings and found that I have defined "open in new tab" for everything (in Tabmixplus extension too). Do you know开发者_如何学Go how to open a link in new tab?

thank you

---

addTab? https://developer.mozilla.org/en/XUL/Method/addTab