diff --git a/testing/firefox/checksums b/testing/firefox/checksums
index 614bbc2a..1095e3c7 100644
--- a/testing/firefox/checksums
+++ b/testing/firefox/checksums
@@ -1,4 +1,4 @@
-ea0654b0de72a01b98408d9ea37fe4d8ad893a40b46309aa5499706ea16d7afe
+c53fe5d9f3dee4221d7008326cbb9fe2c02878f818c139cc4f0f0bf5961f84c6
 3dce6601b495f5b3d45b59f7d2492a340ee7e84b5beca17e48f862502bd5603f
 f0e8bb1f9b7eb0b01285495a2699df3a4b766784c1765a8f1aeedf63c0806369
 036d96991646d0449ed0aa952e4fbe21b476ce994abc276e49d30e686708bd37
diff --git a/testing/firefox/version b/testing/firefox/version
index 0f8de067..4f4b3562 100644
--- a/testing/firefox/version
+++ b/testing/firefox/version
@@ -1 +1 @@
-104.0b4 1
+104.0b5 1