Only webkit-based browsers currently support CSS filters such as blur. So your blur won't appear in IE or Firefox until they have support for CSS filters.
Sounds like I should avoid using blur features for the time being. Are there other features that should be avoided being used?
Edge Animate CC provides a warning at the bottom of the Stage panel if certain effects are not supported in certain browsers.
Off the top of my head:
- All CSS filters (those are Filters in the Properties panel) are not supported in IE and Firefox (not as of this time, anyway)
- Gradients are not supported in IE9
- Text shadow is not supported in IE9
Thanks Joe. All good to know before diving in too deep.