1878318 - window.open doesn't respect background tab preference

Status: RESOLVED DUPLICATE of bug 1081542

(Firefox :: Tabbed Browser, defect)

Description

[Jeff Johnson]

Attachment: index.html

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.3 Safari/605.1.15

Steps to reproduce:

1. In Firefox General preferences, uncheck "When you open a link, image or media in a new tab, switch to it immediately"
2. Open the attached sample HTML file "index.html"
3. Command-click on the "window.open" link

Actual results:

The link opens in the foreground.

Expected results:

The link opens in the background.

The example works as expected in Chrome and Safari.

Below is the relevant HTML/JavaScript:

<p><a href="https://example.org" id="example">window.open</a></p>

<script>
document.getElementById("example").addEventListener("click", (event) => {
event.preventDefault();
const newWindow = window.open("", "_blank");
if (newWindow)
newWindow.location = "https://example.org";
});
</script>