Opening Links in a New Tab, Not a Window: A 2025 Guide

Opening Links in a New Tab: Why Is It a Developer's Eternal Headache?

Hi there, friend! If you've ever written JavaScript and tried to make the browser open a link in a new tab (not a new window), you've probably run into this problem. You write window.open(url, '_blank'), and the browser... stubbornly opens a new window. Or even blocks the pop-up. Sound familiar?

On Stack Overflow, this question has gathered thousands of views and hundreds of answers. And it's no surprise: browser behavior changes, new security standards emerge, and what worked yesterday might fail today. In 2025, the situation has become a bit simpler, but there are still plenty of nuances.

In this article, we'll break down the best practices for opening a URL in a new tab using JavaScript. You'll learn:

• Why window.open is not a panacea
• How to force the browser to open exactly a tab, not a window
• What security pitfalls target="_blank" hides
• Modern alternatives and 2025 tips

Let's go! 🚀

Why Doesn't window.open Always Work as Expected?

It would seem, just use window.open(url, '_blank') — and that's it. But it's not that simple. Modern browsers (Chrome, Firefox, Safari) are increasingly blocking pop-ups if the call is not the result of a direct user action (e.g., a click).

Moreover, even if the pop-up is allowed, in some cases the browser may open a new window instead of a tab. This depends on:

• The user's browser settings
• The window dimensions (if you set width and height, the browser might decide a window is needed)
• The call context (async code, setTimeout, etc.)

Classic Example with a Catch

// This code might work, or it might notdocument.getElementById('myButton').addEventListener('click', function() {    window.open('https://example.com', '_blank');});

If the user has allowed pop-ups — a tab will open. If not — silence. And if you add a setTimeout inside the handler, the browser will almost certainly block the call because it is no longer considered a "direct action".

Best Practices 2025: How to Open a URL in a New Tab and Not Get Burned

Let's go over proven methods that work in 2025. We'll look at both classic methods and modern approaches.

1. Use a Regular Link with target="_blank" (If Possible)

The most reliable way is to not use JavaScript at all. If you have a static link, just add the target="_blank" attribute directly in the HTML:

<a href="https://example.com" target="_blank" rel="noopener noreferrer">    Open in a new tab</a>

Important! Always add rel="noopener noreferrer". Why? Because without this attribute, the page you open gets access to window.opener — and can redirect your original page to a phishing site. This is the tabnabbing vulnerability. In 2025, this is already bad form, but many people forget.

Pros: always works, secure, simple.
Cons: not suitable if the URL is dynamic or if you need to execute logic before opening.

2. window.open with the Right Approach (Dynamic Links)

If you need to open a URL that is generated on the fly, use window.open, but with modern requirements in mind:

function openInNewTab(url) {    // Create a link programmatically    const link = document.createElement('a');    link.href = url;    link.target = '_blank';    link.rel = 'noopener noreferrer';        // Emulate a cl