I have faced next strange behavior in Firefox when use ico file as src in img tag. When It opens in Firefox (latest version), it has 16x16 format despite of the fact that ico original format is 128x128. In other browser (Chrome, IE) everything works great. Just open elephant-128x128.ico in Chrome and Firefox and you will see the difference.
<img height='128' src="http://icons.iconseeker.com/ico/cloth-dolls-icons/elephant-128x128.ico">
https://jsfiddle.net/qwx2sxzg/1/
or http://icons.iconseeker.com/ico/cloth-dolls-icons/elephant-128x128.ico Does anybody has idea how to fix this?