Take this JsFiddle example:
https://jsfiddle.net/5vo1erzu/1/
.tsh {
color: transparent;
text-shadow: 0 0 0 #00f;
-moz-text-shadow: 0 0 0 #00f;
-webkit-text-shadow: 0 0 0 #00f;
}
<div class="tsh">
xxxx
</div>
In Chrome, it displays all text, including the Unicode thought bubble, in blue.
In Firefox, it displays the text in blue, but the thought bubble has its original gray color.
Is there any way I can make this work in Firefox?