diff --git a/firefox.desktop b/firefox.desktop
index de5d47e..e3bee09 100644
--- a/firefox.desktop
+++ b/firefox.desktop
@@ -49,3 +49,4 @@ Type=Application
 StartupWMClass=Firefox-bin
 MimeType=text/html;text/xml;application/xhtml+xml;application/vnd.mozilla.xul+xml;text/mml;x-scheme-handler/http;x-scheme-handler/https;
 StartupNotify=true
+Categories=Network;WebBrowser;
diff --git a/firefox.spec b/firefox.spec
index aa3fea3..a744881 100644
--- a/firefox.spec
+++ b/firefox.spec
@@ -193,8 +193,6 @@ DESTDIR=$RPM_BUILD_ROOT make install
 
 desktop-file-install --vendor mozilla \
   --dir $RPM_BUILD_ROOT%{_datadir}/applications \
-  --add-category WebBrowser \
-  --add-category Network \
   %{SOURCE20} 
 
 # set up the firefox start script