diff --git a/SPECS/firefox.spec b/SPECS/firefox.spec
index 35f40c9..6d580ac 100644
--- a/SPECS/firefox.spec
+++ b/SPECS/firefox.spec
@@ -219,13 +219,6 @@ Patch09:        rhbz-2131158-webrtc-nss-fix.patch
 Patch10:        build-ffvpx.patch
 Patch11:        build-disable-gamepad.patch
 
-# MSVSphere added Russian Trusted Root CA
-Source500:      rootca_ssl_rsa2022.cer
-Source501:      policies.json
-# apply script from ROSA to set Yandex provides
-# as default search provider for Firefox
-# https://abf.rosalinux.ru/import/firefox/raw/rosa2023.1/use_yandex_search_as_default.py
-Source502:	use_yandex_search_as_default.py
 # -- Upstreamed patches --
 Patch51:       mozilla-bmo1170092.patch