Mailchimp Favicons: Why Your Brand Icon May Not Appear

Community threads from Mailchimp users keep circling one annoyance: the browser tab shows the platform’s default icon instead of the owner’s brand mark. Mailchimp sits in Intuit’s portfolio alongside QuickBooks, and plenty of small businesses run both tools. The accepted fix, an Intuit help article we reviewed for this report, treats the problem as a checklist rather than a bug. Get the plan, the file, and the shape right and the custom favicon appears; miss one and the default icon stays put.

What is a favicon?

It is the small square image on a browser tab, beside the page title, and it also surfaces in bookmark lists. Every new Mailchimp site or landing page starts with the platform’s default icon. Swapping in your own mark builds a consistent identity, signals legitimacy to shoppers, and separates your pages from lookalike competitor pages. The guidance describes it as a finishing touch: a simple shape, readable at tiny sizes, that completes the design rather than carrying it.

Does the plan decide who can upload one?

For websites, yes. For landing pages, no. That split catches many users off guard, and it explains much of the confusion in the thread.

• A paid Websites subscription is required to customize the favicon on a Mailchimp website.
• Landing page favicons carry no paid requirement at all.
• Each website takes a single custom favicon, displayed on every page except checkout pages.
• Each landing page takes one favicon of its own. Reuse the same image everywhere, or vary it page by page.

Downgrading has a sting. Move a website back to the free tier and the custom icon reverts to the default Mailchimp mark at the start of the next billing cycle. Anyone planning a downgrade should expect the reversion and time it accordingly.

File specs the upload will reject

Three requirements decide whether the image displays correctly:

• Format: PNG, JPG, or ICO.
• Dimensions: between 16 by 16 and 512 by 512 pixels.
• Shape: square, with height and width identical.

Rectangular artwork fails the check. Crop it first; the content studio’s photo editor handles square crops without external software. Aim for a design that survives shrinking, because a detailed logo often turns to noise at 16 pixels.

How do you upload the icon?

The workflow is short once the file is compliant.

1. Pick a simple mark, such as a single letterform or a trimmed logo.
2. Export it as a PNG, JPG, or ICO file.
3. Confirm the size falls between 16 by 16 and 512 by 512 pixels, with equal height and width.
4. Crop the artwork square in the content studio photo editor if needed.
5. Open the website or landing page in the Mailchimp builder.
6. Open the settings for that site or page and locate the favicon option.
7. Upload the file, then save and publish so the change reaches the live page.

Why does the icon vanish or lag?

Two causes come up: plan changes and browser behavior. The downgrade path is covered above. The other is caching, and it fools people into thinking the upload failed. Browsers hold on to old favicons, so the previous icon can linger on an open tab long after a change publishes. Close the tab, reopen it, or restart the browser. Intuit’s guidance recommends Chrome, Firefox, Safari, or Edge for the most reliable display, and notes that individual browser settings can affect whether a favicon shows at all.

Pages where the icon never appears

Checkout pages are the one blind spot. The custom favicon displays across a website, yet payment pages keep the platform’s standard treatment by design. Merchants comparing tabs during a test purchase should read that exception as expected behavior, not a fault in the upload.

Stripped of its framing, the resolution is a checklist: confirm the plan covers the feature, meet the three file specs, crop square, publish, and refresh with patience for the cache. Owners who tick every box get their mark in the tab. Those who skip one usually see the default icon staring back and assume a bug where none exists.