ServiceNow Framerizer

TLDR:
SN Framerizer is a simple, extremely lightweight Chrome extension that provides a button in your Chrome extensions bar (usually to the right of your URL bar/omnibox).
When clicked, this button takes the current ServiceNow page you're in, and drops it into the ServiceNow frame, including the application navigator and banner header.

Simply click the browser icon or press CTRL+SHIFT+R to drop the current ServiceNow page, into the ServiceNow frame.

More Information:

Have you ever opened a record, list, or link to a ServiceNow page in a new tab? Maybe you middle-clicked a link, or used CTRL+Click, or maybe you right-clicked and chose "open in new tab/window". You may have noticed that this generally takes you OUT of the ServiceNow frame, as you can see in our screenshot.

If, like me, you find yourself often wanting to return to the same page you're currently on, except in the ServiceNow frame, this extension is made for you. Simply click the extension icon to the right of your URL bar/omnibox, and the page you're on will be dropped into the ServiceNow frame.

After installing the extension, be sure to remember to drag the SN Framerizer extension icon next to your URL bar/omnibox, with the rest of your commonly used extensions.