Mozilla Ads Top Bar (Native Ad) ad specs

Mozilla Ads Top Bar (Native Ad) ads are horizontal still images, delivered as JPG or PNG. They run in the Site-wide placement on Mozilla Ads. Use these requirements to brief designers, validate uploads, and avoid creative rejections in Mozilla Ads's ad manager.

Visual specifications

Orientationlandscape
File typesJPG, PNG

Notes & source

Persistent brand spotlight banner displayed site-wide across MDN Web Docs.

Official source: https://www.mozilla.org/en-US/advertising/solutions/

Frequently asked questions

Which file formats does Mozilla Ads Top Bar (Native Ad) accept?
Mozilla Ads Top Bar (Native Ad) accepts JPG and PNG files.
Where does Mozilla Ads Top Bar (Native Ad) appear on Mozilla Ads?
Mozilla Ads Top Bar (Native Ad) ads appear in the Site-wide placement on Mozilla Ads.
Where can I find the official Mozilla Ads Top Bar (Native Ad) documentation?
The official source for Mozilla Ads Top Bar (Native Ad) requirements is https://www.mozilla.org/en-US/advertising/solutions/, linked from this page.
Are these Mozilla Ads Top Bar (Native Ad) specs kept up to date?
Yes — every spec entry references Mozilla Ads's official documentation source so dimensions, file size limits, and codec requirements stay in sync as the platform changes.
Can I reuse the same creative for other Mozilla Ads placements?
Often partially — many Mozilla Ads placements share aspect ratios but differ in safe zones, duration, or file size. Always cross-check the target placement's spec page before reusing creative.