diff --git a/srcpkgs/icecat/files/mozconfig b/srcpkgs/icecat/files/mozconfig
index 31bb6dcd0f2..708ee9eded9 100644
--- a/srcpkgs/icecat/files/mozconfig
+++ b/srcpkgs/icecat/files/mozconfig
@@ -32,3 +32,4 @@ ac_add_options --enable-optimize="$CFLAGS"
 
 ac_add_options --enable-official-branding
 ac_add_options --enable-application=browser
+ac_add_options --allow-addon-sideload
diff --git a/srcpkgs/icecat/template b/srcpkgs/icecat/template
index abdab533f71..450250fe7fd 100644
--- a/srcpkgs/icecat/template
+++ b/srcpkgs/icecat/template
@@ -1,6 +1,6 @@
 # Template file for 'icecat'
 pkgname=icecat
-version=78.6.0
+version=78.6.1
 revision=1
 build_helper="rust qemu"
 hostmakedepends="autoconf213 unzip zip pkg-config perl python3 yasm rust cargo
@@ -18,7 +18,7 @@ maintainer="Jürgen Buchmüller <pullmoll@t-online.de>"
 license="MPL-1.1, GPL-2.0-or-later, LGPL-2.1-or-later"
 homepage="https://www.gnu.org/software/${pkgname}/"
 distfiles="https://distfiles.voidlinux.de/${pkgname}-${version}/${pkgname}-${version}-gnu1.tar.xz"
-checksum=85e85c95cdad245f30b9ef34901552ae1be499191aa409688fee3b67e918c0d1
+checksum=2e4857523a465b39206aa3438e8c799610852ca95c93ae4cb4eb128cd4a28235
 lib32disabled=yes
 
 build_options="alsa jack dbus pulseaudio xscreensaver sndio wayland"