1/ Close tabs more easily — The new Safari in iOS 8 boasts an eye-popping view of all your open tabs – just tap the Tabs button to see your tabs stacked in a scrollable 3D stack. But to close a tab, you need to tap the tiny X in the upper-left corner of the tab. It’s doable, but it can be tricky, especially if you’re trying to use an iPhone with one hand. Instead, just swipe the tab you want to close from right to left. (Left to right won’t work.) It’ll slide off the screen, closing itself in the process.
2/ Rearrange your tabs — There’s a good chance you already knew you could rearrange your Safari tabs on iPad — just hold and drag a tab at the top of the screen left or right (as you can in Safari on Mac). But you can rearrange Safari tabs on iPhone, too. Go back to the tabs view in Safari by tapping the tab button in the lower-right, tap and hold a tab, then drag it up or down. When you do, the other tabs move out of the way, making room above or below for the tab you’re dragging. [This also works in the square-button-based Horizontal View, below.]
3/ Hold the Back button — No need to dig into your History to see your recently visited pages. Instead, just tap and hold the Back button. Now you can jump back two, three, five, or 10 pages. when you tap-and-hold the Back button (the left-facing triangle at the top left of the Safari screen), you get a History list of the pages you visited recently in that current tab. (To see your history across all tabs, you still have to go to the History list in the Bookmarks menu.) Tap a page in the menu to jump to it, of course – and this trick works with the Forward button, too.
4/ swiping through pages — Speaking of the Back and Forward buttons, there’s no need to tap those buttons to back up or skip forward one page.
Instead, starting from just outside the edge of the screen, swipe from left to right to go back. To go forward, swipe from right to left.
5/ Swipe to close a tab on another device — To close a Safari tab on your Mac desktop using the iPhone in your hand, if all your Macs (running Mountain Lion or later), iPhones and iPads (running iOS 6 or later) are connected to your iPhone account, you can already view all the open Safari tabs on any of those devices, thanks to iCloud Tabs. If you swipe one of those open tabs from right to left, a Delete button will appear. Tap it to remotely close the open tab on the other device. It can take up to a minute, though.
Extra — hidden Safari buttons — Just pull down the Favorites [sic] window to reveal a pair of hidden Safari buttons called Add to Favorites and Request Desktop Site. When you tap the address bar at the top of the screen, a window with buttons for all your Favorite sites will appear. Usually you’d just tap one of those icons to jump to that site, or type a search query or URL into the address bar itself.
But if you pull down on the Favorites window, you’ll see two more options new in iOS 8: ‘Add to Favorites’ adds the current page to that Favorites grid, and ‘Request Desktop Site’ requests the full desktop version of the current page, instead of its mobile-optimised version.