In the past, I used to attempt to use an extension called “Chinese words separator” to show pinyin and listen to their natural voices but it was not successful because it didn’t display the pinyin nicely.
This is already fixed in version 8.24.84.1990 last January 30, 2024
From a forum:
This is already fixed in version 8.24.84.1990 last January 30, 2024