If you've just spent hours converting your entire site's image payload to WebP to appease the Lighthouse performance gods, you might naturally wonder if you can toss your legacy ICO files and rely on favicon webp format support for your browser tabs, too.

The Reality of Favicon WebP Format Support in 2026

WebP is fantastic for hero images. It handles transparency better than JPEG and compresses smaller than PNG. But the browser tab ecosystem is a completely different beast.

Technically, Chromium-based browsers (like Chrome, Edge, and Brave) do support WebP favicons. If you throw a WebP file into a standard link tag, Chrome will happily render it. However, Safari remains notoriously stubborn, often falling back to a blank white square or a generic initial if you don't provide a secondary format.

Why Even Google Avoids It

Here is a fun fact: Google invented the WebP format. Yet, if you inspect the DOM on Google.com or GitHub right now, you won't find a single WebP favicon. They rely entirely on ICO and PNG.

Why? Because favicons are tiny. A 32x32 pixel PNG is already microscopic in file size (often under 1KB). The compression benefits of WebP at that scale are practically zero. The overhead of decoding a WebP file might actually cost more CPU cycles than just rendering a raw PNG or SVG.

How to Implement It (If You Insist)

If you're building an internal dashboard where you know 100% of your users are on Chrome, you can implement it like this:

<link rel='icon' type='image/webp' href='/favicon.webp'>

But for a public-facing site, you must provide fallbacks. Browsers read tags top-to-bottom, so you have to structure your HTML carefully to ensure Safari doesn't choke on the WebP declaration.

The 2026 Best Practice

My professional advice? Skip WebP for favicons entirely. It solves a problem that doesn't actually exist in front-end development.

Instead, adopt the modern standard stack:

If you're still confused about which image types belong where, check out our comprehensive favicon file formats comparison. Don't over-engineer your browser tabs. Use Mzu favicondl to generate the exact formats browsers actually want, and save your WebP files for your actual page content.