Norton Internet Security 2009 gives warning for Thunderbird. Is this a warning of a threat?

From Kenneth Ellman

 

I have Norton Internet Security 2009 installed.

When Thunderbird email program is brought up I get the following Warning Message from Internet Security:

 

"KeyKeyBoard Data Polling"

"Program Files\Mozilla"

"Thunderbird"

"Thunderbird.exe"

 

The Norton warning box asks me to choose"

"Allow Always"   OR

"Block This Instance"

 

   Is this a warning of malicious program in Mozilla or Thunderbird??????? 

   What action should I take??

    If I do not give permission to the Norton Internet Security it of course blocks the Thunderbird program.

    I did not previously get this message and it started appearing after the computer was attacked.

    This might just be coincidental or a possible problem.

     Any help appreciated.

 

Thank you very much.

 

Kenneth Ellman