Comment Re:It's a string in the user-agent (Score 5, Informative) 500
You can go to "about:config" and clear the value of "general.useragent.extra.microsoftdotnet" to remove the "(.NET [...])" part of the UA string.
Love may laugh at locksmiths, but he has a profound respect for money bags. -- Sidney Paternoster, "The Folly of the Wise"