Which version of the extension are you using? If you can't memorize shortcut keys, then please file an issue on GitHub detailing the steps to reproduce the bug. You can easily change a keyboard shortcut by selecting it and using whatever key combination you fancy. Alternatively, you can use the "Clear all keyboard shortcuts" button to remove all of them. However, I do recognise that using ctrl+c as a shortcut was a terrible mistake, so I've removed that keyboard shortcut in the latest release 5.0.5.