Cannot reach settings to choose input, therefore cannot use it. it's a pity, cause i've been successfully using it on opera and chrome. and it is fantastic there! the quality superb! I hope you can find the time and opportunity to fix it for Mozilla/Zen.
thank you for your great work!

I was skeptical based on the negative reviews but I was also desperate for something. The extension didn't seem to work at all for me but I didn't really give it an honest try because I was worried over the reviews. I plan to come back to this one latter and see how it progresses.

doesn't work

Straight up doesn't work. Desktop app is fine but the author just refuses to merge in a fork that has basic quality of life features