Shortcut key to Navigate from the current tab to the next or previous tab of your browser or other apps

 CTRL + TAB was a common keystroke to move from tab to tab.

In many most/latest applications uses control key + tab key combination to navigate from navigate from the current tab to the next or previous tab. You can use these key combination in apps such as Internet explorer, Firefox, Adobe Photoshop CS5 etc.

You can press CTRL + TAB to navigate from current tab to next tab (left to right)
OR
You can press CTRL + SHIFT + TAB to navigate from current tab to previous tab (right to left)

You just need to know that most latest application introduces the use of tabs like most latest browsers, Nitro PDF, Adobe Photoshop and so many apps.