I did a rough user stylesheet (CSS) to allow me see tooltips on mobile.
It requires Stylus extension (I use Firefox on Android that supports extensions).
This kind of stuff could be included in the plugin but I actually use it on all sites.
abbr[title]:hover {
border: 2px solid white;
color: #333;
background: #FF6;
}
abbr[title]:hover:after {
content: " (" attr(title) ")";
}