diff --git a/thunderbird/.footprint b/thunderbird/.footprint
index 57f9332fc..2ab400de0 100644
--- a/thunderbird/.footprint
+++ b/thunderbird/.footprint
@@ -1,3 +1,6 @@
+drwxr-xr-x	root/root	etc/
+drwxr-xr-x	root/root	etc/revdep.d/
+-rw-r--r--	root/root	etc/revdep.d/thunderbird
 drwxr-xr-x	root/root	usr/
 drwxr-xr-x	root/root	usr/bin/
 lrwxrwxrwx	root/root	usr/bin/thunderbird -> /usr/lib/thunderbird/thunderbird
diff --git a/thunderbird/.signature b/thunderbird/.signature
index 2ab41cb8e..d03083b28 100644
--- a/thunderbird/.signature
+++ b/thunderbird/.signature
@@ -1,6 +1,6 @@
 untrusted comment: verify with /etc/ports/contrib.pub
-RWSagIOpLGJF32F9Wf5IbGjxL5qYmUBB/9qVLo0vlBYlHzYuNFZprOmAS19dgJrHAodnFFK9RUmssHwuUHWCAFGG4ngCYLsaLQA=
-SHA256 (Pkgfile) = 1cfcaa396169ffa186d85ad7c71c5b519582a38fd6d1efc5187e5d6974a75a23
-SHA256 (.footprint) = 338dc6124421f0621a277d438968288f6f4bf864519517484a8fbb172385c4ee
+RWSagIOpLGJF32Ow4RlyPBWvqNihPuyBT1Th3PM1KlBAVcpYCT9GQG+0ISkBZjy+EAseB6EjWCX5m0e7M4jP3Bz6mQsyaagBdAU=
+SHA256 (Pkgfile) = 5c3582dbb1b781648ccd7cad32a3cb7f67939cbc70ad94a34632abb7e36c37c3
+SHA256 (.footprint) = 6b9d0cf535593004cc52a1235980afb12eab4471e85cd6f32a7e5844d8193651
 SHA256 (thunderbird-78.7.1.source.tar.xz) = 0ccc5a54fb2548489c9579f677cb4ff3c191b1d1fcf33bef6b1cf6eb704e385a
 SHA256 (thunderbird.desktop) = c6bc6a66f16951c4f7560d019dad48968169aef6587cef4e98380a300078299a
diff --git a/thunderbird/Pkgfile b/thunderbird/Pkgfile
index 2e5c770fe..b5516b9c7 100644
--- a/thunderbird/Pkgfile
+++ b/thunderbird/Pkgfile
@@ -66,4 +66,7 @@ EOF
 
 	find $PKG -iname '*README*' -delete
 	#rm -r $PKG/usr/{include,lib/thunderbird-devel,share/idl}
+
+	install -d $PKG/etc/revdep.d
+	echo "/usr/lib/thunderbird" > $PKG/etc/revdep.d/$name
 }