Giroud was substituted and booed off at home to Belarus on Tuesday.
"I welcomed my position in the starting XI with a lot of enthusiasm and happiness," said the 25-year-old.
"Being in French team starting XI is always a privilege. However, I was a little disappointed to be substituted.
"When you are a forward you need time and try to not listen to the fans, above all at Stade de France, where the audience is always a little special."