Studio and Outdoor Senior Photography in the Reno, Sparks and Carson City Area. FIREFOX 3.5.1 USERS: Firefox has changed the way colors in images, and background colors on html pages, relate to each other. This begins with version 3.5.1 released in Spring/Summer 2009. If you use FF 3.5.1, you may notice solid background colors surrounding images (or graphics) differ from immediately adjacent solid background colors. These colors should actually match each other. This is only an issue with Firefox 3.5.1--any other browser, or Firefox browsers earlier than 3.5.1, will display the site as intended.