To open a new private window you can follow these steps:


1. **Google Chrome**:

   - Click on the three-dot menu icon in the upper-right corner.

   - Select "New Incognito Window" from the dropdown menu.

   - Alternatively, you can use the keyboard shortcut `Ctrl + Shift + N` (on Windows/Linux) or `Command + Shift + N` (on macOS) to open a new incognito window.


2. **Mozilla Firefox**:

   - Click on the three-bar menu icon in the upper-right corner.

   - Choose "New Private Window" from the dropdown menu.

   - Alternatively, you can use the keyboard shortcut `Ctrl + Shift + P` (on Windows/Linux) or `Command + Shift + P` (on macOS) to open a new private window.


3. **Microsoft Edge**:

   - Click on the three-dot menu icon in the upper-right corner.

   - Select "New InPrivate Window" from the menu.

   - Alternatively, you can use the keyboard shortcut `Ctrl + Shift + P` (on Windows/Linux) or `Command + Shift + P` (on macOS) to open a new InPrivate window.


4. **Safari** (macOS):

   - Click on the "File" menu in the top-left corner.

   - Choose "New Private Window" from the dropdown menu.

   - Alternatively, you can use the keyboard shortcut `Command + Shift + N` to open a new private window.


5. **Opera**:

   - Click on the "Menu" button in the upper-left corner (the red O icon).

   - Select "New Private Window" from the menu.

   - Alternatively, you can use the keyboard shortcut `Ctrl + Shift + N` (on Windows/Linux) or `Command + Shift + N` (on macOS) to open a new private window.


Remember that private or incognito windows are designed to provide some level of privacy by not saving browsing history, cookies, and other browsing data. However, they do not provide complete anonymity or security. If you need stronger privacy and security, you might need to consider using a VPN or other privacy-focused tools.