Hello, I'm setting up Mailerlite sign-up forms on my Wordpress website https://jilldobsonwriter.com. (I'm using the HTML option because I can't get the Mailerlite plugin to work for me. That's a whole other story.) The URL on the landing page produces the sign-up 'success' message. The embedded form on the blog page (https://jilldobsonwriter.com/blog-2/) does not. I have attached a screenshot of the webpage that appears (https://assets.mailerlite.com/jsonp/521838/forms/95057252703012500/subscribe). This doesn't happen on Microsoft Edge. My guess is that Firefox and Mailerlite aren't playing nicely, hence a subscriber gets this 'under the bonnet' view rather than being progressed straight through to the success message. And yes, everything is updated. Any thoughts? Thanks! -Sei