A few weeks ago, I was having trouble logging into my Twitter account on Firefox (not on Edge). In an unrelated issue, I had to reformate my computer, and the problem went away. Today, Firefox updated itself, and the problem returned. I have it bookmarked as a pinned tab, and when I click on it, I get an error message, and it won't let me log in. However, if I right click on the same tab, and select "open in private window", it lets me log in, no issues. I don't really want to have a new window open though, and it worked after I reformatted, and before this update. I have done what previous people have suggested (clicking on the security icon to turn off security for that page), but it doesn't help. Any suggestions would be nice. Thanks in advance...