Problem with the embedded boards in Firefox

I have a blog and when I view it in Firefox, the games shared there with the https://www.chess.com/analysis-board-editor have the notification "Käytät Chess.comia kielellä englanti. Klikkaa tästä nähdäksesi sen kielellä suomi." There is also the option for other languages. The part in the quotation part that is in Finnish, would be something like "You use Chess.com in English. Click here in order to see it in Finnish" in English. Now there is that X that should close the notification, but it does not do that. Actually the X does not do anything at all. If I click the part where it says "Klikkaa tästä" or Click here in English, the board disappears. With Google Chrome and Microsoft Edge it works. However, I do not like to see the notification at all, it is completely useless when applied to the embedded boards. If possible, could that feature to be removed from the embedded boards? Thank you.

Does it also show when you are not logged on to the site? I wonder if it is seeing your cookie/session and displaying it.

One way to check would be by visiting the page with the embedded board in private mode.

It does not seem to matter if I am logged on to the site or not. It also does not matter if I visit the page in private mode or not. When I am viewing it with Firefox the same notification is shown and the same problem exists.

Well, okay now I seem to have found a way to prevent that notification from happening. I needed to change the preferred language shown for the pages in the browser settings. D'oh... When I changed that from Finnish to English, I do not see that notification anymore