Currently on 129.0b2 (64-bit) For the last few months an important feature stopped work and has side effect when trying. I receive a lot of emails that require a response, and have a button for approve/deny or reply button within the email. In the past, you click on button and it would popup a prepopulated email for response. Now, when attempting, nothing happens, no email automatically pops up to reply. It also has the side effect after attempting, if you click on an other email afterwards, even if it was already downloaded, it show a blank in the windows pane. I have to close TB and restart for things to work again. I now have to open outlook to use the approve/deny buttons. I thought it might have been a change by the sender email, but I am seeing it across the board with any email that need to popup a new email by clicking a button or link with the email. I also went back to previous emails where I know the approve button worked six months ago.. but hitting approve now does the same thing; nothing. And I have to restart TB. Did some change in TB a few months ago? I am seeing the same behavior on all devices. Rob