Why can't I download any apks all of a sudden?

[Elaine Williamson]

Amazon appstore stopped working so I uninstalled and am trying to reinstall but cannot get the apk to download. I'm using a Nexus 7 and Firefox. I get a quick flash of the status bar not can't find a download anywhere. I've tried several different apks like Spotify and Firefox. None will download. I set the option to allow from unknown sources. Please help! I'm ready to throw this in the trash!

 

[dpham00]

Have you tried the Google play store?