Same problem with my FF. I am opening https://www.google.co.uk/maps it's loading for 2s after that F

Same problem with my FF. I am opening https://www.google.co.uk/maps it's loading for 2s after that FF is froze. On bottom message I have "Readed mt0.google.com" and it is frozen for about 15min, still nothing changed. Sometimes message is different "Loading from www.gstatic.com....". I don't have English version so maybe it was loading, maybe reading, but you can get the idea.

I don't use acceleration.