Yet another case of web incompatibility. I tried to signup for email updates on your website hmdglobal.com, but the signup button doesn't work in Firefox (at least not for me, and I enabled tracking and third party cookies too). It works in IE11... I hope that you're not still using IE11 as your main test case for your website, it's a pretty bad benchmark for compatibility.
The website I refer to is nothing to do with the overhaul promised for the community forum. I'm referring to HMD Global's own website, hmdglobal.com, not the nokia.com/phones website.