Question

I am trying CSS filter but it does not work in my Firefox (15.0) browser.

HTML:

<div class="google">
     <img src="https://www.google.com/images/srpr/logo3w.png">
</div>

CSS:

.google{   
    -moz-filter: grayscale(100%);
    filter: grayscale(100%);
}

Demo:
http://jsfiddle.net/xDJzU/

Answer 1

GrayScale has limitations to work in firefox using a -moz-filter.

To get it working use the below snippet:

filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale"); /* Firefox 3.5+ */

DEMO