Even with the advice given in this post, WikiTree Browser extension still does not work for me in safari on iPad 4 mini, iPadOS 15.8. WBE is enabled in Safari settings, most if not all default options are on, the orange WBE icon shows in the address bar, I have verified in safari settings that permissions are granted, I have reloaded pages and even logged out of WikiTree, closed all tabs and closed safari and started from scratch - I still do not see the WBE enhancements.