If you have the habit of opening numerous tabs while browsing, closing them individually can be cumbersome. However, on Safari for iPhone 6 and iPhone 6 Plus, you can achieve closing all tabs easily with the following steps:
Step 1: Navigate to the Settings menu.
Step 2: Scroll down and locate the Safari option; select it.
Step 3: Click on Clear History and Website Data.
Step 4: Return to the Safari app, and all your opened tabs are now closed.
https://Mytour.vn/ios-8-dong-cung-luc-nhieu-tab-tren-trinh-duyet-safari-1511n.aspx
By following this method, not only will your web browsing history and searches get tidied up, but also on iOS 7, you won't need to go through such steps. However, on iOS 8, Apple no longer provides this option. Nevertheless, with this method, it's still effortless, especially if you find it frustrating to close tabs one by one on iOS 8.
