diff --git a/.hgtags b/.hgtags
index 4a37c617f52d..6df332616a54 100644
--- a/.hgtags
+++ b/.hgtags
@@ -4256,3 +4256,4 @@ e9bf19464ff8acb7062bb569b5abf4ff9fd9ea6b FIREFOX-ANDROID_128_0b8_BUILD1
 e9bf19464ff8acb7062bb569b5abf4ff9fd9ea6b DEVEDITION_128_0b8_RELEASE
 e9bf19464ff8acb7062bb569b5abf4ff9fd9ea6b FIREFOX_128_0b8_RELEASE
 e9bf19464ff8acb7062bb569b5abf4ff9fd9ea6b FIREFOX-ANDROID_128_0b8_RELEASE
+c7248a902790a7a3ebbeebfb9c699bb31e202969 DEVEDITION_128_0b9_BUILD1