SVG filter only working when added in style attribute (Firefox)

Question

I added a blur effect svg to my HTML(text/html):

    ...
    
        ...
        

Answer 1

It seems to work fine in firefox like so,

HTML

JSFIDDLE (with an image in the div)

JSFIDDLE (with a background image on the div)

Did you included the the svg code in your html markup?