I like to open multiple tabs from the webpages I'm reading /researching. Lately each one of those opened tabs has a new pesky little "play" button in them, apparently called "Play Tab" (that's the name it displays). The thing is, if I click it the button disappears and the tab length shortens automatically which has made me click "Close tab" accidentally a few times. Wouldn't be a problem if it didn't automatically change the tab width. I would like to disable / eliminate this feature. How can I do it?