Disable the "You've gone full screen" notification in Chrome

This can be accomplished by starting Chrome in kiosk mode.

Here are instructions on how to do this: http://think2loud.com/868-google-chrome-full-screen-kiosk-mode/

Here are steps for running Google Chrome in full screen Kiosk Mode on a Windows PC:

1. Right click on your Desktop and go to New > Shortcut

2. Browse to the chrome.exe file (depending on how you installed it, it might be in one of these locations:

   • C:\Program Files (x86)\Google\Chrome\Application\chrome.exe
   • C:\Users\<username>\AppData\Local\Google\Chrome\Application\chrome.exe) and click Next

3. Type a name for the shortcut (ie “Chrome Kiosk Mode”) and click Finish

4. Right click on the new shortcut on your Desktop and go to Properties

5. At the end of your Target replace chrome.exe with chrome.exe –kiosk http:// [enter URL here] and click OK

6. Double-click the shortcut on your Desktop and it will launch the full screen Kiosk

7. To quit the Kiosk, press Alt + F4 on your keyboard.

FYI, here's a solution.

As a summary:

• Go to: chrome://settings/contentExceptions#fullscreen
• Replace any existing URL with: [*.]

The entry will disappear, but it should still work.

Source of pattern: https://support.google.com/chrome/answer/3123708?p=settings_manage_exceptions&rd=1

I'm pretty sure that it's impossible to suppress this message because this could be a potential security problem (you could fake a desktop and intercept the input of the user).

You could search the chromium source for a flag or something to disable the message. I looked into a few files with the string "Exit Full Screen" but due to my limited experience in C/C++ I gave up after two minutes.

Right now it doesn't seem possible in Chrome, but it's super easy in Firefox: visit about:config, then enter full-screen-api.warning.timeout and set value to 0. Save and enjoy.

Source: https://www.howtogeek.com/659105/how-to-disable-firefoxs-fullscreen-warning-message/