User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.57 Safari/537.36 Steps to reproduce: 1. create `a` element with a long texts 2. style `a` element with `text-overflow: ellipsis` and `text-decoration: underline` Actual results: Ellipsis created by `text-overflow` does not have underline. Expected results: Ellipsis should have underline.

I don't see anything in http://dev.w3.org/csswg/css-text/ or http://dev.w3.org/csswg/css-ui/ describing the correct behavior here, except for http://dev.w3.org/csswg/css-ui/#text-overflow saying: The ellipsis is styled and baseline-aligned according to the block. which probably suggests that the current behavior is correct per the spec.

Yes, the spec does not specify correct behavior of ellipsis's text styling. But I think Firefox should treat `text-*` properties same as `color` or `font-weight`, because there is no way to style ellipsis via CSS.

Fwiw, our current behavior is intentional - we explicitly added code to truncate text-decorations before the ellipsis. I'd like to see something explicit about text-decorations in the text-overflow spec (and at least one other UA committing to implementing it) before changing our code. (spec changes should be discussed on www-style@w3.org) I think our current behavior makes sense as the default (and so did roc@ in bug 312156 comment 143, saying "Other browsers don't apply text-decorations, which makes sense to me."). Any new behavior should be opt-in, perhaps using a separate property.