Thunderbird problem/question
I caused a problem for myself in TB (using a different email account).
By accident I had clicked on "Quick Filter", without noticing I had done
that.
Then I had proceeded to highlight all messages in Inbox in order to move
them to
another folder.
As soon as I realized I had done that, I did not proceed with the move.
But now, clicking on any message (be it in Inbox or in Sent) the message is
not displayed.
If I double click on a message, then it is displayed in an external
window of TB.
How can I revert it back to original expected behavior?