Dimensions should be 3000px wide × 100px high.It will be anchored to the bottom-left corner of the browser window. In older versions of Firefox, or newer versions with certain add-ons installed, the footer image is displayed as the background of the bottom of the browser window, behind the add-on and find bars. Photoshop - Tweak, rotate and touch up photos with Photoshop® Express, a free online photo editor.Pixlr - Pixlr offers professional and easy-to-use tools for creating and editing images within a browser.The upper right-hand side of the image should have the most important information-as a user increases the width of the browser window, the browser reveals more of the left-hand side of the image.Firefox may reveal more of the lower portion of the image if another toolbar or other UI element is added to the top of the window.

Subtle, soft contrast images and gradients work best highly detailed images will compete with the browser UI.

Image must be no larger than 300 KB in file size.

Dimensions should be 3000px wide × 200px high.

It will be anchored to the top-right corner of the browser window. The header image is displayed as the background of the top of the browser window, nestling in behind the toolbars, address bar, search bar and the tab strip. Themes are made up of a 'header' graphic image file, which skins the default Firefox UI background.įinished Your Design? You can submit it right now! Creating a Theme Header Image

Mozilla firefox theme find