Links occasionally don't mark
I have a private message board and I am having problems with the messages not marking as read. Sometimes they mark and sometimes they don't. If they do not mark I refresh the page and they show as marked. I thought it might be just one computer but all three are doing the same thing. I started with the 77 version of Firefox. I replaced my router because of other problems. I took one of my laptops completely removed Firefox by deleting everything mozilla in appdata and sub directories. I went into the registry and deleted everything mozilla. I then reinstalled Firefox, left it as a fresh install. Booted my computer in safe mode with only network. I then launched Firefox and it is still doing the same thing not marking the messages as read by changing color all the time. Like I said sometimes it does mark them and sometimes it doesn't. I am running the latest version of Firefox. Microsoft Edge and Internet Explorer no problem marking as read. Does anyone have any more suggestions to try.