Here is a screenshot of the popup that I mean. https://i.imgur.com/uMmwnjB.jpg

This is so incredibly annoying. Sometimes I will get the dialog box 2 or 3 times in a row, before I'm finally able to get the targeted app to open.

I haven't been able to find a way to disable it, but there must be one in about:config somewhere, right?

Are there any way to disable this new "feature"? I am not able to log in to my bank since this warning appeared.

For anyone with the same problem, they have added the possibility of turning it off by going to Settings and in the Advanced section click on Open links in app and select the option preferred.

Thanks.

The option mentioned above under advanced settings is there however it does not work!!! I have it set off and the pop-up still comes up for everything phone calls, anything. I even turned my phone off and turned it back on and it still does it. I absolutely hate this thing!!!!

Like shortmop has said the option to set it off is not working and I can't click anything. Congratulations firefox for inviting me to change to chrome. I never requested this lame feature and next time you decide to implement something so annoying maybe allow users to turn it on instead of forcing it to be on and broken. I'm using the latest Android Firefox available today and this is still ongoing and have not been fixed. Almost a month now and the lame feature is still present and preventing me to do anything useful with the browser.

Thanks for ruining it and forcing me to move to chrome. It's very appreciated. Also ignore all bug requests to fix it or to disable it that have been ongoing.

Bye bye Firefox

I had this problem and solved doing this process:

Menu>Settings>Open links in Apps>>Always

This option isn't intuitive but you need chose to the option: "Always"

This popup has effectively broken the functionality of many wensites including Google Forms. If you choose Never (open links in apps) then you're stuck in the browser even for links like maps. But if you choose Always, then it forces you to open irrelevant apps that require signing in for simply viewing a pdf or whatever. This wasn't an issue until a few weeks ago, but it's making FF nearly useless for me.

Never does not work. Aliexpress and other sites like reddit still show the popup.