Somesay its possible to run firefox apps. but i cant confirm this. because i am having trouble with bugs etc.
Q: Which apps can be installed on KaiOS?
A: Obviously a KaiOS compatible app then again it depends whether a particular app in a KaiStore for a Jio phone is readily available in a KaiStore for Nokia 8110 4G. I am aware Z-Group Mobile produces KaiOS games and apps but since i don't have a Nokia 8110 4G, I can't comment further.
So actually are apps links to the "website" like when i am browsing on my phone the server know that i am browsing from my mobile phone and therefore is showing mobile webpage ? if i am understanding it right ?