Thank you! That's very helpful

フランス語の辞書を利用させてくれて、あなたは私の英雄です。

There is a mistake with imported sentences, I send screenshots to your e-mail.

This is the best thing ever in the history of Japanesekind! <3

Thank you so much for developing this! It's absolutely brilliant and just like rikaisama :)

I have one request though - on yomichan (a similar chrome extension), there is a feature where by dictionary entries only appear for a word if the shift key is pressed whilst you hover over the word. Would it be possible to add this feature to rikairebuilt also (it could be included in the keyboard section of the options)? I have been having the problem of lots of unwanted definitions showing up when I move the cursor over other words on the way to the word I want to know the definition of.

Thanks again!

It's cool so see this add-on being ported to newer versions of Firefox! I'm sure it's still being actively worked on so I'll just report issues I face as I come across them. Currently I have to re-enable the addon every time I go to a new page. Sometimes even then it won't work, I click the icon to enable it and all I get is a little blue rectangle bar at the top left of my screen, but no popup over words. Refreshing doesn't seem to fix it. I have to closer the browser and re-open it.
Also when importing to Anki I don't get the word frequency like I did with Rikaisama. I also can't see the word frequency anywhere in the popup. I assume this just hasn't been implemented yet.
I also can't find anywhere to import with a specific tag, which was something I depended on when using Rikaisama.

I'm curious if it will be possible to get the EPWING functionality working like Rikaisama had, though I seem to remember CB saying that wouldn't work with the way addons are restricted in newer Firefox versions.