diff --git a/mail/thunderbird/Makefile b/mail/thunderbird/Makefile
index 10263c2ec597..96a7d8074294 100644
--- a/mail/thunderbird/Makefile
+++ b/mail/thunderbird/Makefile
@@ -1,73 +1,74 @@
 PORTNAME=	thunderbird
 DISTVERSION=	140.0
+PORTREVISION=	1
 CATEGORIES=	mail news net-im wayland
 MASTER_SITES=	MOZILLA/${PORTNAME}/releases/${DISTVERSION}${DISTVERSIONSUFFIX}/source \
 		MOZILLA/${PORTNAME}/candidates/${DISTVERSION}${DISTVERSIONSUFFIX}-candidates/build1/source
 DISTFILES=	${DISTNAME}.source${EXTRACT_SUFX}
 
 MAINTAINER=	gecko@FreeBSD.org
 COMMENT=	Mozilla Thunderbird is standalone mail and news that stands above
 WWW=		https://www.mozilla.com/thunderbird/
 
 #		autoconf2.13:devel/autoconf2.13 \
 
 BUILD_DEPENDS=	nspr>=4.32:devel/nspr \
 		nss>=3.112:security/nss \
 		libevent>=2.1.8:devel/libevent \
 		harfbuzz>=10.1.0:print/harfbuzz \
 		graphite2>=1.3.14:graphics/graphite2 \
 		png>=1.6.45:graphics/png \
 		dav1d>=1.0.0:multimedia/dav1d \
 		libvpx>=1.15.0:multimedia/libvpx \
 		${PYTHON_PKGNAMEPREFIX}sqlite3>0:databases/py-sqlite3@${PY_FLAVOR} \
 		v4l_compat>0:multimedia/v4l_compat \
 		nasm:devel/nasm \
 		yasm:devel/yasm \
 		zip:archivers/zip \
 		${LOCALBASE}/share/wasi-sysroot/lib/wasm32-wasi/libc++abi.a:devel/wasi-libcxx${LLVM_VERSION} \
 		${LOCALBASE}/share/wasi-sysroot/lib/wasm32-wasi/libc.a:devel/wasi-libc@${LLVM_VERSION} \
 		wasi-compiler-rt${LLVM_VERSION}>0:devel/wasi-compiler-rt${LLVM_VERSION}
 LIB_DEPENDS=	libjson-c.so:devel/json-c
 
 USE_GECKO=	gecko
 CONFLICTS_INSTALL=	thunderbird-esr
 # cannot use system icu: calendar is completely broken by
 # https://unicode-org.atlassian.net/browse/ICU-22132 (fix not in 76.1)
 USE_MOZILLA=	-icu -sqlite
 CFLAGS_powerpc64le=	-DSQLITE_BYTEORDER=1234
 
 USES=		tar:xz
 # helpful when testing beta
 WRKSRC=		${WRKDIR}/${PORTNAME}-${DISTVERSION}
 
 MOZ_OPTIONS=	--enable-application=comm/mail --enable-official-branding
 MOZ_OPTIONS+=	--with-system-bz2 --with-system-jsonc
 MOZ_OPTIONS+=	--with-wasi-sysroot=${LOCALBASE}/share/wasi-sysroot
 MOZ_MK_OPTIONS=	MOZ_THUNDERBIRD=1 MAIL_PKG_SHARED=1
 MOZ_EXPORT=		MOZ_THUNDERBIRD=1 MAIL_PKG_SHARED=1
 
 PORTNAME_ICON=	${MOZILLA}.png
 PORTNAME_ICON_SRC=	${PREFIX}/lib/${MOZILLA}/chrome/icons/default/default48.png
 
 SYSTEM_PREFS=	${FAKEDIR}/lib/${PORTNAME}/defaults/pref/${PORTNAME}.js
 
 OPTIONS_DEFAULT=CANBERRA
 
 .include "${.CURDIR}/../../www/firefox/Makefile.options"
 
 post-extract:
 	@${SED} -e 's|@PORTNAME_ICON@|${PORTNAME_ICON:R}|;s|@MOZILLA@|${MOZILLA}|' \
 		<${FILESDIR}/thunderbird.desktop.in >${WRKDIR}/${MOZILLA_EXEC_NAME}.desktop
 
 post-patch:
 	@${REINPLACE_CMD} -e 's|%%LOCALBASE%%|${LOCALBASE}|g' \
 		${WRKSRC}/comm/mail/app/nsMailApp.cpp
 
 port-pre-install:
 	${MKDIR} ${STAGEDIR}${PREFIX}/lib/${PORTNAME}/defaults
 
 post-install:
 	${INSTALL_DATA} ${WRKDIR}/${MOZILLA_EXEC_NAME}.desktop ${STAGEDIR}${PREFIX}/share/applications
 	${LN} -sf ${PORTNAME_ICON_SRC} ${STAGEDIR}${PREFIX}/share/pixmaps/${PORTNAME_ICON}
 
 .include <bsd.port.mk>
diff --git a/mail/thunderbird/files/patch-bug1973073 b/mail/thunderbird/files/patch-bug1973073
new file mode 100644
index 000000000000..af0d682e8d03
--- /dev/null
+++ b/mail/thunderbird/files/patch-bug1973073
@@ -0,0 +1,23 @@
+
+# HG changeset patch
+# User Daniel Darnell <daniel@thunderbird.net>
+# Date 1750358329 25200
+# Node ID 68f59e2fec41c8c2e6b89de9a119a862a8358add
+# Parent  275763c890c435d54bfc540dbd26bed5e170cd4a
+Bug 1973073 - Temporarily hard-code MOZ_OFFICIAL_BRANDING_DIRECTORY into confvars.sh (for comm-release). rs=bustage-fix a=dandarnell
+
+diff --git comm/mail/confvars.sh comm/mail/confvars.sh
+--- comm/mail/confvars.sh
++++ comm/mail/confvars.sh
+@@ -1,9 +1,9 @@
+ #! /bin/sh
+ # This Source Code Form is subject to the terms of the Mozilla Public
+ # License, v. 2.0. If a copy of the MPL was not distributed with this
+ # file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ 
+ MOZ_BRANDING_DIRECTORY=comm/mail/branding/nightly
+ 
+ # This is a temporary hard-coded measure to accomodate MSIX repackaging
+-MOZ_OFFICIAL_BRANDING_DIRECTORY=comm/mail/branding/tb_beta
++MOZ_OFFICIAL_BRANDING_DIRECTORY=comm/mail/branding/thunderbird
+