It is a good Add-on, but I found it did not work for a long time. Lucky, I solved this problem today, after updating to the new version of Firefox.

When I try it today again, a pop-up message is come up. it tells me to change the setting of cookie to make it function.

Pls try:
1. go to Firefox "Setup"
2. find "Cookie" setting
3. find "接受來自第三方的 Cookie" (English may be: Accept 3rd party Cookie (sth likes that)
4. choose: "造訪過的網站" (English may be: website visited (sth likes that)
5. close the setup page

It should work now. I tried. hope you can solve it as well.

Icon disappeared from taskbar completely.(FireFox Quantum)

Makes it easier to learn, work and more.

Nice! Does what it says - and a bit more.

一直使用印象笔记，很好用，也一直使用Firefox，这次更新比较大，速度很快，之前都不愿写评价的，真心希望Firefox能越来越好用。

Stopped working since firefox update

Love this app, but right now it seems buggy. Icon disappeared from taskbar completely.

Excelente herramienta al momento copiar y guardar un articulo en especifico.

My experience with the extension in FF57 has been pretty straight straightforward: it simply doesn't work. I click the button and nothing happens. Unusable!

problem with FF 57 (quantum).
can't change Clipping method

problems with FF Quantum