Problems with Firefox and IE

Hello, a short question. I use Wordpress and I just installed all the things and settings. If I want to subscribe with Firefox, there is no User in the dashboard. Either with desktop PC or smartphone. If I use Crome, everything is fine. With IE there is no Bell shown and no slider. What could be the problem. Setting-Problem. Is it possible to turn off Firefox and IE, so only with Crome is shown. It is not good, when user subscribe (with firefox) and don´t get any News. Thanks


IE does not support web push notifications so the user will not see any opt-in prompt.
For Firefox it should work. Can you please share your website URL so that we can check what the issue is?