User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9a9pre) Gecko/2007102605 Minefield/3.0a9pre Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9a9pre) Gecko/2007102605 Minefield/3.0a9pre Loading the linked URL offers to download a JPEG that Firefox should display itself automatically. No option is shown to display, just to load it in another application. Reproducible: Always Steps to Reproduce: 1. browse to linked URL Actual Results: Download dialog presented, no option to display image in Firefox Expected Results: Firefox displays image. Download dialog, if it was going to be displayed, should offer to open it with Firefox's own JPEG handler.

The URL returns following headers. > content-disposition: attachment; filename=3708321-Full.jpg > Content-Type: image/jpeg DUP of Bug 185618.