Why I am obtaining this error message trying to register the FireFox action on Google.com using JMeter?

I am absolutly new in Jmeter and I have the following problem.

I succesfully recorded the navigation on some websites into a HTTP(S) Test Script Recorder Non Test element.

Then I was trying to record the navigation on Google so I used the same approach, these are the steps:

- Add --> Non Test Element --> HTTP(S) Test Script Recorder.
- Test Plan Creation TAB --> Target Controller: Test Plan > HTTP(S) Test Script Recorder.
- Request Filter TAB --> Add suggested Excludes (exludes all the images,etcetc not needed for test pourpose).
- Set proxy on browser 127.0.0.1:8888 for all the protocols.
- Install JMeter certificate in Firefox.
- Start recording.
- Open a website.
- Stop recording.

The strange thing is that, differently from the other registered website, trying to access to the Google main page I obtain the following error message into FireFox:

There is an error during the connection with www.google.com

Why? What is wrong? What am I missing?