*** For desktop see https://help.vivaldi.com/desktop/privacy/private-windows/

• Go to the Vivaldi menu button Vivaldi menu (Windows and Linux) > File > New Private Window;
  OR
• Type ‘New Private Window‘ in Quick Commands;
  OR
• Use the Keyboard Shortcut Ctrl Shift N / ⌘ Shift N;
  OR
• Create a new Mouse Gesture for opening a new private window.

*** For Android see https://help.vivaldi.com/android/android-browse/android-tabs/#Private_Tabs

• Open the Vivaldi menu button Vivaldi menu on the right side of the Address Bar;
• Select New Private Tab.
  OR
• Open the Tab Switcher;
• Slide to Private Tabs;
  OR
• Tap on the + button in the middle of the bottom toolbar
• In the Tab Switcher, tap on the overflow menu on the right side of the bottom toolbar.
• Tap New Private Tab.

**** For iOS see https://help.vivaldi.com/ios/ios-browse/tabs-on-ios/#Private_Tabs

• Open the Vivaldi menu button Vivaldi menu on the right side of the Address Bar.
• Select New Private Tab.
  OR
• Open the Tab Switcher.
• Slide to Private Tabs.
• Tap on the + button in the middle of the bottom toolbar.
  OR
• -While viewing a web page or the Speed Dial, long-press on the Tab Switcher button until a context menu opens.
• Select Open in Private.