(No idea why Count gets a list of open pages when he does that?)
Because when I’m scrolling down the page, or putting a comment into the reply box, the list of open tabs along the top disappears, but when you tap the clock at that point it causes the tab headers to reappear, then you tap a second time to go back to the top of the page.
I’m amazed at the number of people who seemed to completely miss the point of what I posted, and the original question that I was replying to, by going on about a lack, or not of a back button.
It helps to read the sodding question being asked, and the reply to it, before going off half-cocked!