Ugh, app stores! No one needs them for discovering new software. You go to the app store to get a specific piece of software you already know about and whose reputation you’ve already verified. No one needs them for code signing. If you want the real firefox.apk you can download it from https://firefox.com/ and notice a lack of SSL alarms going off. What’s the code signing for — to let me know that HTTPS works?! All…
There's also people that don't know that they need "Firefox", they just want a browser. Or a tool to print envelopes or crop an image. So they search in the app store and they know it'll probably be okay.
If you search for this online you'd get a bunch of SEO spam sites, shady tools among other things. At least due to the developer fee and reviews there's at least some barrier of entry (Also if it's not perfect).
> App stores leave me with all sorts of unwanted properties, namely Google / Apple throwing their unwanted opinion around. Search for Instagram in the iOS App Store: the top UI element is “InstaMap”, thanks Apple!
Apple's search is notoriously bad and the perfect case to apply Hanlon's razor.