To correct the global error "ms.ElementsFromPoint is not a function" in Firefox 59.x.x

Hello,

Apparently a maintenance has been performed on the world i'm currently playing on (Tib 32) on March 22, but i still got issues. I have to click dozens times on every buttons to actually have them working (i have this behavior even with no scripts activated).

To avoid doing the about:config thing explained above, i've made a script (working with tampermonkey) with that :

document.msElementsFromPoint = function() {
    return null;
};

It somehow managed to "hide" the errors and game was half playable (many buttons didn't register click, just like the behavior i'm having with the official patch...).
The error seemed related to that : https://github.com/qooxdoo/qooxdoo/issues/9481

As of now, the best thing to do is either playing in Chrome or downgrade FF to 58 :/

Is there something to do playerside (like clearing cache or whatever) or is there another fix incoming for this issue in the next days ?