T-series devices with new 4.1.4 Android OS. If having difficulty with the web browser not showing the tabs at the top for different web pages that were open. There is a setting called "Quick controls" that gives the user a different way to navigate. It disables the tabs and puts them in a quick menu that pulls out from the side when you slide your finger in from the right side of the screen. Here's what it looks like:
To enable/disable this you want to touch the 3 dots at the top right of the browser and then go to settings:
Then click on Labs and then the option for Quick controls is on the right:
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