[non-entity]

Not completely broken, but I swear Google images purposely degrades their UX on Firefox on Android.

On Chrome Android if expand and then long press an image result I get the native menu that allows me to save the menu to my device.

On firefox android however, after expanding the image result I cannot long press the image. Instead, pressing the image shows a lighybox overlay and a button that links to the image result on the original webpage (and ofc it's always behind pinterest auth or something) and a "share" button that opens a popup that is certainly not the native Android share feature.

[SturgeonsLaw]

Google has a track record of serving different experiences to Firefox users, and it has nothing to do with compatibility, changing your user agent so you appear as Chrome shows pages that work just fine.

I'm convinced it's a deliberate action.

[lowdose]

Use Yandex for image search it is way better.