Coming days after the last Opera 51 developer preview, Opera 51 Beta includes numerous improvements and new features, among which we can mention the ability to quickly scroll to the top of the current web page with a single mouse click of the tab, a redesigned Private mode for macOS, a “Back to tab” button for the video pop-out, and a new mechanism for backing up and restoring Opera profiles. Opera 51 Beta also displays collapsible lists of opened and closed tabs in tabs menu, as well as imported bookmarks in the Bookmarks manager, provides a new option in Settings – Websites – Flash to allow all websites to use the Adobe Flash Player plugin, along with a new “Reset browser settings???” button in Settings- Browser that lets users reset their Opera browser to its original state.