diff --git a/dist/firefox/publish-signed-beta.py b/dist/firefox/publish-signed-beta.py
index fbc297224..6b53c639f 100755
--- a/dist/firefox/publish-signed-beta.py
+++ b/dist/firefox/publish-signed-beta.py
@@ -178,7 +178,7 @@ with open(unsigned_xpi_filepath, 'rb') as f:
         sys.stdout.write('.')
         sys.stdout.flush()
         time.sleep(5)
-        countdown -= 5
+        countdown -= 1
         if countdown <= 0:
             print('Error: AMO signing timed out')
             exit(1)
diff --git a/dist/firefox/updates.json b/dist/firefox/updates.json
index 870b08e28..4de4976af 100644
--- a/dist/firefox/updates.json
+++ b/dist/firefox/updates.json
@@ -3,10 +3,10 @@
   "uBlock0@raymondhill.net": {
    "updates": [
     {
-     "version": "1.15.11b5",
+     "version": "1.15.11b6",
      "applications": { "gecko": { "strict_min_version": "52" } },
-     "update_info_url": "https://github.com/gorhill/uBlock/releases/tag/1.15.11b5",
-     "update_link": "https://github.com/gorhill/uBlock/releases/download/1.15.11b5/uBlock0.webext.signed.xpi"
+     "update_info_url": "https://github.com/gorhill/uBlock/releases/tag/1.15.11b6",
+     "update_link": "https://github.com/gorhill/uBlock/releases/download/1.15.11b6/uBlock0.webext.signed.xpi"
     }
    ]
   }