Live view orientation

I’ve had a Doorbell 2 since 15th July. So far it seems to be working OK as long as the battery is charged up.
I look at the live view using my web browser Firefox.
On the laptop and iPad all is OK but on my Samsung phone the image is flipped on the horizontal axis so the view of outside is upside down.
I can’t find any settings on the phone or the Ring App to correct it.
I just noticed that the preview iscorrectly orientated.

I don’t use the Ring app on the phone – it’s too old.
I was using firefox and I cleared the cache as suggested but it made no difference. Today I installed Opera and all is well regarding the orientation. So it seems to be a firefox and Samsung issue. Firefox displays correctly on laptop and iPad.
Thanks for your help.