It used to be my Number 1 favorite Extension, and I was using it for years every day, But lately it asked me to download an offline application on my computer, in order to "utilize" the full potential of this extension. By doing so after some days the "supposed trial" has end... And it doesn't work now on my firefox browser. It is really strange, because on my other Browsers (Edge and Chrome) I can use it normally without any problem. In Firefox now It doesn't allow me to take screenshots if i don't pay. I should have never downloaded your offline app. 🙄 I don't understand what happened, so I had to Uninstall your offline application from my pc, to try if it still works on my Firefox, but it doesn't. What went wrong? Since this can't be fixed on my browser, I have replaced it with another great Addon identical to yours, and its called "Awesome screenshot"!