specify a custom web browser to launch

instead of launching the default browser, pass a custom file path.

also include a csv of command line flags like incognito,start-maximized

comfy/cli_args.py

@@ -94,6 +94,9 @@ parser.add_argument("--windows-standalone-build", action="store_true", help="Win
 
 parser.add_argument("--disable-metadata", action="store_true", help="Disable saving prompt metadata in files.")
 
+parser.add_argument("--custom-browser-path",   type=str,   help="Path to custom browser instead of platform default, ex: c:/chrome.exe")
+parser.add_argument("--custom-browser-args-csv",   type=str,   help="Args to pass to browser, ex: \"incognito,start-maximized\"")
+
 args = parser.parse_args()
 
 if args.windows_standalone_build:

comfy/utils.py

@@ -407,3 +407,19 @@ class ProgressBar:
 
     def update(self, value):
         self.update_absolute(self.current + value)
+
+def launch_custom_web_browser(args, address, port):
+    import webbrowser
+    custom_browser = webbrowser.GenericBrowser(args.custom_browser_path)
+    
+    #If the user has supplied custom browser args
+    if args.custom_browser_args_csv:
+
+        #args.browser_args_csv is a csv, split it into a list, prepend "--" to each arg and append to custom_browser.args
+        for arg in args.custom_browser_args_csv.split(","):
+            custom_browser.args.append("--" + arg)
+    
+    webbrowser.register('custom_browser', None, custom_browser)
+    customBrowser = webbrowser.get('custom_browser')
+    print(f"Launching custom browser at " + args.custom_browser_path)
+    customBrowser.open(f"http://{address}:{port}")

main.py

@@ -180,7 +180,16 @@ if __name__ == "__main__":
             import webbrowser
             if os.name == 'nt' and address == '0.0.0.0':
                 address = '127.0.0.1'
-            webbrowser.open(f"http://{address}:{port}")
+
+            #If the user has supplied a custom browser path, use that instead of the default browser
+            if args.custom_browser_path:
+                if os.path.isfile(args.custom_browser_path):
+                    comfy.utils.launch_custom_web_browser(args, address, port)
+                else:
+                    print(f"Custom browser path does not exist: {args.custom_browser_path}")
+            else:
+                webbrowser.open(f"http://{address}:{port}")
+
         call_on_start = startup_server
 
     try: