diff --git a/.hgtags b/.hgtags
index 4e00dbf51cc8..931d6725cd1e 100644
--- a/.hgtags
+++ b/.hgtags
@@ -4251,3 +4251,4 @@ f6d0f0798c23332170a4a29fa59562a4f2639c9a FIREFOX-ANDROID_128_0b2_RELEASE
 10e085c5fff8effb7bc9bc319a67c0c6f71bb601 DEVEDITION_128_0b7_RELEASE
 10e085c5fff8effb7bc9bc319a67c0c6f71bb601 FIREFOX_128_0b7_RELEASE
 e9bf19464ff8acb7062bb569b5abf4ff9fd9ea6b DEVEDITION_128_0b8_BUILD1
+e9bf19464ff8acb7062bb569b5abf4ff9fd9ea6b FIREFOX_128_0b8_BUILD1