How can i convert my htaccess to work on firebase hosting

Question

I'm using firebase hosting and i googled and htaccess is not supported this is my htaccess how do i convert it to firebase:

RewriteEngine on


RewriteCond %{THE_REQUEST} /([^.]+)\.html [NC]
RewriteRule ^ /%1 [NC,L,R]

RewriteCond %{REQUEST_FILENAME}.html -f
RewriteRule ^ %{REQUEST_URI}.html [NC,L]

i tried nothing i just googled while development that it supports it and it appears to not support htaccess