diff --git a/Lib/webbrowser.py b/Lib/webbrowser.py
index 3dcf66b..53e0efc 100755
--- a/Lib/webbrowser.py
+++ b/Lib/webbrowser.py
@@ -550,7 +550,7 @@
                 cmd = "xdg-settings get default-web-browser".split()
                 raw_result = subprocess.check_output(cmd, stderr=subprocess.DEVNULL)
                 result = raw_result.decode().strip()
-            except (FileNotFoundError, subprocess.CalledProcessError):
+            except (FileNotFoundError, subprocess.CalledProcessError, PermissionError) :
                 pass
             else:
                 global _os_preferred_browser