w/ only characters type detected from page enabled
w/ display both enabled
Download the extension: https://addons.mozilla.org/en-GB/firefox/addon/zhongwen-css-modified/
I made this modded version because I just prefer Zhuyin over Pinyin, and my goals for Mandarin fit more around Guoyu Mandarin and the use of a Bopomofo keyboard - thus Pinyin is rather irrelavent to me - and I couldn't find a way to remove it from the original version.
You will need to enable Zhuyin in the options page, to get to this press
This is only made possible thanks to the wonderful work of Christian Schiller
The original: https://addons.mozilla.org/en-US/firefox/addon/zhongwen/
The repo: https://github.com/cschiller/zhongwen