@Mastermc
The elements captured from Firefox are considered as Window elements.
Could you please check if the Extensions are enabled. Navigate to PAD Designer -> Tools -> Browser Extension -> Firefox.
Add Microsoft Power Automate Extension.
Close all the Firefox browser instances.
Please follow the below steps, and test if the issue occurs:
(i) Launch new Firefox with "www.google.com"
(ii) Use Populate Text field on Webpage action, click Add new UI element and capture the Search text field using the orange highlighter.
Check if the captured element is stored under Webpage controls as shown here:
