diff --git a/dist/firefox/publish-signed-beta.py b/dist/firefox/publish-signed-beta.py
index 38255308a..8729c3aac 100755
--- a/dist/firefox/publish-signed-beta.py
+++ b/dist/firefox/publish-signed-beta.py
@@ -197,7 +197,7 @@ with open(unsigned_xpi_filepath, 'rb') as f:
     # https://blog.mozilla.org/addons/2019/11/11/security-improvements-in-amo-upload-tools/
     #   "We recommend allowing up to 15 minutes."
     interval = 60                   # check every 60 seconds
-    countdown = 15 * 60 / interval  # for at most 15 minutes
+    countdown = 60 * 60 / interval  # for at most 60 minutes
     headers = { 'Authorization': get_jwt_auth(), }
     data = { 'channel': 'unlisted' }
     files = { 'upload': f, }