Icons do not work in Firefox 18.0 (neither in 14.0.1).
The following example works fine in Chrome, but shows a broken image in Firefox:
http://jsfiddle.net/3kcwS/29/
Edit:
When setting svgInline = true; (overriding the test) in line 42, it works. Apparently the test if SVG is supported is broken.
Icons do not work in Firefox 18.0 (neither in 14.0.1). The following example works fine in Chrome, but shows a broken image in Firefox: http://jsfiddle.net/3kcwS/29/
Edit: When setting
svgInline = true;
(overriding the test) in line 42, it works. Apparently the test if SVG is supported is broken.