diff --git a/set_firefox_config.sh b/set_firefox_config.sh
index e962e91..8a21a95 100755
--- a/set_firefox_config.sh
+++ b/set_firefox_config.sh
@@ -20,6 +20,7 @@ apt_firefox () {
             # agregase repo de mozilla
             add-apt-repository -y ppa:mozillateam/ppa
 
+            # pin para a version de snap do Firefox
             if [ ! -f /etc/apt/preferences.d/mozilla-firefox ]; then
                 echo '
 Package: *
@@ -31,7 +32,7 @@ Pin: version 1:1snap*
 Pin-Priority: -1
 ' | sudo tee /etc/apt/preferences.d/mozilla-firefox
             fi
-	fi
+        fi
     fi
 
     apt purge -y firefox