Why can't I find Firefox in the AppCenter? enter image description here

Not only Firefox, but also other non-elementary Apps.


AFAIK the AppCenter only shows apps whitin the Ubuntu Store and sources. If those apps you have aren't on the official repos they won't show up there.

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  • The Firefox is from the Ubuntu Store. – JulianLai Sep 5 '16 at 16:54
  1. In the repositories included with Loki.
  2. Have an AppData file that conforms to specification OR
  3. Have a .desktop file that conforms to specification.

That said, Firefox appears in my AppCentre.

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  • You mean I have to include other repositories? It is installed from the official repository. – JulianLai Sep 5 '16 at 16:56


sudo apt update

This may be related to an unfixed bug:

AppCenter is empty if apt update has never been run [$30]

Expectation: AppCenter fires up packagekitd and updates the software catalog transparently in the background when the session starts up

Reality: AppCenter only shows data for the pre-installed packages. packagekitd never fixes it. AppCenter is useless until you open a Terminal and manually run apt update

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  • I did run apt update. – JulianLai Sep 7 '16 at 0:25

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