I am on the release channel and have 139.0.2 (64bit) installed on my main computer and my laptop. Up until recently I have been able to right click on Local Folders and select "Mark All Folders Read" and all mail within all my folders are marked read. Now, however, when I click "Mark All Folders Read", I get the confirmation box "Are you sure you want to mark all messages in all folders of this account as read?" but when I click OK, the box disapears but nothing happens at all to the folders. Please help as I use this feature alot. Thank you for your time Paul Stear (appjaws)