diff --git a/extra/firefox-esr-bin/checksums b/extra/firefox-esr-bin/checksums
index a451b1de..8e9cc092 100644
--- a/extra/firefox-esr-bin/checksums
+++ b/extra/firefox-esr-bin/checksums
@@ -1 +1 @@
-6b01950e6da883df0abbc2c420ce6a48bb76dafab1426c926ef8d2993b011ab2
+0d8a77235149860331a5dbebdc4bf6834657113cbe1e391a5bffe3b1b17d4ce9
diff --git a/extra/firefox-esr-bin/sources b/extra/firefox-esr-bin/sources
index 1eeafd86..218c9359 100644
--- a/extra/firefox-esr-bin/sources
+++ b/extra/firefox-esr-bin/sources
@@ -1 +1 @@
-https://github.com/kisslinux/repo/releases/download/2020.7/firefox-esr.78.2.0esr-1.tar.gz
+https://github.com/kisslinux/repo/releases/download/2020.9-2/firefox-esr.78.3.0esr-1.tar.gz
diff --git a/extra/firefox-esr-bin/version b/extra/firefox-esr-bin/version
index edd9370a..bc5b1b26 100644
--- a/extra/firefox-esr-bin/version
+++ b/extra/firefox-esr-bin/version
@@ -1 +1 @@
-78.2.0esr 1
+78.3.0esr 1