diff --git a/modules/desktop/files/etc/firefox-esr/prefs.js b/modules/desktop/files/etc/firefox-esr/prefs.js
index edf85227b02a7b1935f25a8317aaed9d53f502b3..c61cb4dc16c620e206e0b069d757efe79f3d0c94 100644
--- a/modules/desktop/files/etc/firefox-esr/prefs.js
+++ b/modules/desktop/files/etc/firefox-esr/prefs.js
@@ -17,7 +17,5 @@ pref("browser.cache.disk.smart_size.first_run", false);
 pref("browser.cache.disk.smart_size.use_old_max", false);
 pref("browser.download.useDownloadDir", false);
 pref("privacy.donottrackheader.enabled", true);
-pref("startup.homepage_welcome_url, "");
-pref("startup.homepage_welcome_url.additional, "");
-pref("browser.startup.homepage_override.mstone", "ignore");
 pref("browser.startup.homepage", "data:text/plain,browser.startup.homepage=http://ccc-ffm.de/getting-started/");
+pref("browser.startup.homepage_override.mstone", "ignore");