diff --git a/modules/shared.py b/modules/shared.py
index cce8708..a27c654 100644
--- a/modules/shared.py
+++ b/modules/shared.py
@@ -40,7 +40,7 @@ parser.add_argument("--lowram", action='store_true', help="load stable diffusion
 parser.add_argument("--always-batch-cond-uncond", action='store_true', help="disables cond/uncond batching that is enabled to save memory with --medvram or --lowvram")
 parser.add_argument("--unload-gfpgan", action='store_true', help="does not do anything.")
 parser.add_argument("--precision", type=str, help="evaluate at this precision", choices=["full", "autocast"], default="autocast")
-parser.add_argument("--share", action='store_true', help="use share=True for gradio and make the UI accessible through their site (doesn't work for me but you might have better luck)")
+parser.add_argument("--share", action='store_true', help="use share=True for gradio and make the UI accessible through their site")
 parser.add_argument("--ngrok", type=str, help="ngrok authtoken, alternative to gradio --share", default=None)
 parser.add_argument("--ngrok-region", type=str, help="The region in which ngrok should start.", default="us")
 parser.add_argument("--codeformer-models-path", type=str, help="Path to directory with codeformer model file(s).", default=os.path.join(models_path, 'Codeformer'))
@@ -97,6 +97,9 @@ restricted_opts = {
     "outdir_save",
 }
 
+if cmd_opts.share or cmd_opts.listen:
+    cmd_opts.disable_extension_access = True
+
 devices.device, devices.device_interrogate, devices.device_gfpgan, devices.device_swinir, devices.device_esrgan, devices.device_scunet, devices.device_codeformer = \
 (devices.cpu if any(y in cmd_opts.use_cpu for y in [x, 'all']) else devices.get_optimal_device() for x in ['sd', 'interrogate', 'gfpgan', 'swinir', 'esrgan', 'scunet', 'codeformer'])
 
diff --git a/modules/ui_extensions.py b/modules/ui_extensions.py
index b7d747d..e74b7d6 100644
--- a/modules/ui_extensions.py
+++ b/modules/ui_extensions.py
@@ -13,7 +13,13 @@ import html
 from modules import extensions, shared, paths
 
 
+def check_access():
+    assert not shared.cmd_opts.disable_extension_access, "extension access disabed because of commandline flags"
+
+
 def apply_and_restart(disable_list, update_list):
+    check_access()
+
     disabled = json.loads(disable_list)
     assert type(disabled) == list, f"wrong disable_list data for apply_and_restart: {disable_list}"
 
@@ -40,6 +46,8 @@ def apply_and_restart(disable_list, update_list):
 
 
 def check_updates():
+    check_access()
+
     for ext in extensions.extensions:
         if ext.remote is None:
             continue
@@ -89,6 +97,8 @@ def extension_table():
 
 
 def install_extension_from_url(dirname, url):
+    check_access()
+
     assert url, 'No URL specified'
 
     if dirname is None or dirname == "":