The current Kagi browser extension does not allow for configuring default summary types and output languages. I am unable to permanently set a specific language as the output language. In the present version, if I want to summarize in a certain language, I need to manually switch languages each time.
I believe that after installing the browser extension, users will set their default summary type and output language in the extension settings once and for all. Afterwards, they can simply click the summary button whenever they need a summary.