For some reason I’m unable to reply to private messages or make a forum post from my notebook ( PC, windows 10, Firefox 68.0.1) however I can post and reply to PMs from a mobile device (iphone) so it’s apparently not a problem with my APC account. If I try from my PC the space where you type the main text of the post or reply is grey and you can’t place it the cursor in it.

Any ideas?