diff --git a/testing/firefox/checksums b/testing/firefox/checksums
index b1e9baf9..366d41ca 100644
--- a/testing/firefox/checksums
+++ b/testing/firefox/checksums
@@ -1,4 +1,4 @@
-0cd4ba586bb321e1b661d8cc30b9f9f47f4b44daca412666b0493b17e667912a  firefox-72.0b7.source.tar.xz
+e2c0773757b92d6e30eff6c659687b3bfad244146363c70a9bcfdcf21911baa8  firefox-72.0b8.source.tar.xz
 f0611136bee505811e9ca11ca7ac188ef5323a8e2ef19cffd3edb3cf08fd791e  autoconf-2.13.tar.gz
 b5e70b12cc9dd18fffd7924a7d3a2e11574136fe0764359d08eba0755f1c5d4c  mozconfig
 960d82bbfdc88c95f5cb4f2e1c1bf23dae7519b3b7203914d7b3ddbff1ba4c28  stab.h
diff --git a/testing/firefox/sources b/testing/firefox/sources
index 870cb8da..0c5339f1 100644
--- a/testing/firefox/sources
+++ b/testing/firefox/sources
@@ -1,4 +1,4 @@
-https://archive.mozilla.org/pub/firefox/releases/72.0b7/source/firefox-72.0b7.source.tar.xz
+https://archive.mozilla.org/pub/firefox/releases/72.0b8/source/firefox-72.0b8.source.tar.xz
 https://ftp.gnu.org/gnu/autoconf/autoconf-2.13.tar.gz autoconf2.13/
 files/mozconfig
 files/stab.h toolkit/crashreporter/google-breakpad/src/
diff --git a/testing/firefox/version b/testing/firefox/version
index 6b904bcf..812e12b0 100644
--- a/testing/firefox/version
+++ b/testing/firefox/version
@@ -1 +1 @@
-72.0b7 1
+72.0b8 1