I have a problem with CSS. When I try to do
-webkit-filter: blur(1px);
-moz-filter: blur(1px);
-ms-filter: blur(1px);
-o-filter: blur(1px);
filter: blur(1px)
That sounds about right, and it is currently supported in:
Reference
Here is an article from David Walsh (works at Mozilla) on Internet Explorer specific filters, for example t motion blur:
.blur { filter:blur(add = 0, direction = 300, strength = 10); }
It looks like normal blurring support is patchy with Internet Explorer though and I'm not surprised, especially pre-9.