I have been unable to post items to the community forum using the Firefox browser. If I switch to Msoft Edge, all is well. I'm currently running Firefox 63.0.3 (64 bit) on a Windows 10 Home system at current maintenance level. Have tried flushing the browser cache and cookies to no avail. What happens is this: If I log in successfully and try to post a reply, I'm prompted to sign in again even though I'm already logged in. I'm aware of the fact that at least some other users with a similar software configuration are able to use Firefox here OK. Any ideas?