Works great for me for my very narrow use case. I specifically wanted to be able to read Wikipedia for practice and it works great with Wikipedia. I've disabled automatic injection just because that's my preference anyway.

Crashes Twitter if Twitter language is set to JPN and automatic injection is on.

彳亍！

Excellent, but I wish it worked on google translate. Instead, it makes the kanji disappear.

Heard about this on Wanikani. It works great and haven't had any problems with it so far. I love it!

Great add-on. Native speaker here but certainly rusty and appreciate the help this provides with helping me to read the more difficult Kanji's. I might agree that a shortcut to toggle it on/off may be good; so that I ca test reading ability now and again.

Nice extension, but I face an issue.

I used this extension on Youtube. It worked fine once, but it is not working since then.

Also, the browser cannot make any request. So, no new comments load and no webpage can be opened after using the extension.
The problem resolves if I restart Firefox.

Please fix this. This is a really nice extension for firefox.

can you add a button or keyboard shortcut to remove furigana that has been inserted? since sometimes I dont want furigana always showing. thanks

Once inserted on for a page, furigana cannot be removed!!! The icon in the toolbar has no utility at all! Doesn't work on many pages such as amazon pages (just a small part of the top of the page is processed). Makes Firefox VERY slow... And furigana sometimes not exact. Globally, very poor extension!