diff --git a/.hgtags b/.hgtags
index 515c1f7c4679..405c2a3f2210 100644
--- a/.hgtags
+++ b/.hgtags
@@ -285,3 +285,4 @@ fc01df84fa6d91b9dabb4b608eb947cef3230871 FIREFOX_NIGHTLY_120_END
 4ef3a0b2e8cd48a60eed95f8ba15e13ee48432af FIREFOX_NIGHTLY_123_END
 2af34b4c9adf8c8defd3251b569af9c38cc0a429 FIREFOX_BETA_124_BASE
 3a789882861bf458a92ed529bdbe4ddc39bd9671 FIREFOX_NIGHTLY_124_END
+488c57bb8ceed6da3f0be935156a480cdb92bc32 FIREFOX_BETA_125_BASE