I had a similar frustrating experience on iOS this morning. Clicking a YouTube link in Mobile Safari prompted opening the native app. I wanted to watch in the b

I had a similar frustrating experience on iOS this morning. Clicking a YouTube link in Mobile Safari prompted opening the native app. I wanted to watch in the browser, so tapped "cancel," which cancelled the entire page load. There was no way to follow the YouTube link without uninstalling the native app. Firefox for iOS ignored the prompt, and I could watch the video.