diff --git a/thunderbird-redhat-default-prefs.js.rhel7 b/thunderbird-redhat-default-prefs.js.an7
similarity index 96%
rename from thunderbird-redhat-default-prefs.js.rhel7
rename to thunderbird-redhat-default-prefs.js.an7
index 4d01b7833b018d0bf5fe31dab6d5e578aadc53ec..a3f8698dd8f69bc5b3dc1f79feeb3dee741f168e 100644
--- a/thunderbird-redhat-default-prefs.js.rhel7
+++ b/thunderbird-redhat-default-prefs.js.an7
@@ -2,7 +2,7 @@ pref("app.update.enabled", false);
 pref("app.update.autoInstallEnabled", false);
 /* Allow users to set custom colors*/
 /* pref("browser.display.use_system_colors",   true);*/
-pref("general.useragent.vendor", "Red Hat");
+pref("general.useragent.vendor", "Anolis OS");
 pref("general.useragent.vendorSub", "THUNDERBIRD_RPM_VR");
 pref("intl.locale.matchOS", true);
 pref("mail.shell.checkDefaultClient", false);
diff --git a/thunderbird.spec b/thunderbird.spec
index 2e013993864c133396ceca58297d67e7931da4f2..25d4bf91969daa95e89d943a72f54ac600969846 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -1,3 +1,4 @@
+%define anolis_release .0.1
 # Set for local builds only
 %global disable_toolsets  0
 
@@ -129,7 +130,7 @@ end}
 Summary:        Mozilla Thunderbird mail/newsgroup client
 Name:           thunderbird
 Version:        91.3.0
-Release:        2%{?dist}
+Release:        2%{anolis_release}%{?dist}
 URL:            http://www.mozilla.org/projects/thunderbird/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 Group:          Applications/Internet
@@ -145,7 +146,7 @@ ExcludeArch:    s390 ppc
 %endif
 
 # We can't use the official tarball as it contains some test files that use
-# licenses that are rejected by Red Hat Legal.
+# licenses that are rejected by Anolis Legal.
 # The official tarball has to be always processed by the process-official-tarball
 # script.
 # Link to official tarball: https://archive.mozilla.org/pub/thunderbird/releases/%%{version}%%{?pre_version}/source/thunderbird-%%{version}%%{?pre_version}.source.tar.xz
@@ -163,7 +164,7 @@ Source21:       thunderbird.sh.in
 Source24:       mozilla-api-key
 Source27:       google-api-key
 Source28:       node-stdout-nonblocking-wrapper
-Source701:      thunderbird-redhat-default-prefs.js.rhel7
+Source701:      thunderbird-redhat-default-prefs.js.an7
 
 Source403:      nss-3.67.0-6.el8_1.src.rpm
 Source401:      nss-setup-flags-env.inc
@@ -1151,6 +1152,9 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
+* Wed Dec 29 2021 yangxianzhao <yangxianzhao@uniontech.com> - 91.3.0-2.0.1
+- Rebrand for Anolis
+
 * Tue Nov 02 2021 Eike Rathke <erack@redhat.com> - 91.3.0-2
 - Update to 19.3.0 build2