I have a progressive web app (PWA) that provides canned text for quit texting to a phone number and uses the phone’s SMS app to eventually send the text (https://www.gallaware.com/qt”) On Android, it works fine when in the browser – either Chrome or Firefox. When the user clicks “Send text message…”, in Firefox a dialog appears, “Open in another app”, and asks if the user wants to Cancel or Open. This works just fine.

I have a newly-deployed PWA and want to test it in the browser. However, on some devices the install action doesn’t appear in the context value, but on other devices it appear.