Titles with LATEX strings doesn't appear in firefox

Since last week, I'm observing that if figure or axis titles have LATEX string, they don't show up when using notebook from firefox. I can confirm this using the latest version i.e. 4.12, but same problem is there for earlier versions like 4.8 and 4.10 (I've tested them, not sure why they used to work before and not now):

Though the same works perfect in chrome.

So this problem is specific to firefox. And I must mention that LATEX strings render perfectly in firefox when displaying them using IPython.Math or simply in matplotlib as axis labels or title. So my guess is that this problem is specific to some MathJax configuration in plolty itself - this error message from firefox console may help:

Please let me know if I can provide more useful information.

Thanks for the great work!

Riproduci la figura LaTeX o i titoli degli assi mancanti in un notebook usando Firefox e confronta il risultato con Chrome. Esamina l’errore nella console di Firefox e il comportamento di rendering relativo a MathJax; il lavoro è completato quando i titoli LaTeX vengono renderizzati in Firefox come in Chrome.