The update to Thunderbird 78.4.1 introduces another annoyance. The previous update increased the white space in the message lists and folder list and made other unhelpful changes (I had to figure out how to restore my contact lists. Today, I discovered that with the latest update when I scroll my cursor over the message list, the information disappears a the cursor scrolls over a line. If I hover long enough the information will appear in a bubble but that is useless when I am trying to select items to move or mark. And at other times, it is simply annoying. Very annoying. Can I fix this? Help please. Thanks, Len