SBIE2335 Initialization failed for process conathst.exe [33 / 5]

[stgtech]

I am running Sandboxie 5.0 (64) trying to use Mozilla Firefox on a Windows 10 system, but getting the above message in a popup box over and over. I don't know if this error means the browser is not sandboxed. In any case, I can't to use the browser due to the continuous popup boxes with the error messages. The last digit in the message seems to change from zero to five over and over.

[bjm]

"coNatHst.exe" is a Norton process.
try disable Norton toolbar / Norton browser extensions.