Rated 5 out of 5 stars

Amazing, it works very well and keeps things simple! I'd like to request a few things, if possible:
1. As KaaMos mentioned, it would be great if the tab would open in the background, as opposed to being switched to immediately, when a download begins.

2. Would it be possible to use the Ctrl-J shortcut normally reserved for opening the original download manager to switch to the download tab when it's already open? The shortcut works fine if you want to open the tab, but if you switch to another one and want to go back, the shortcut does nothing and you have to click the tab to return to it.

3. Also, would it be possible to add a "Clear List" button on the manager page as is found on the native download manager? Having to click the little trash can on multiple finished downloads can get tedious.

This review is for a previous version of the add-on (0.3). 

Thanks for the feedback, will look into your suggestions.

Note that "Clear List" is already available inside the "List" menubutton in the toolbar - I figured it's strange to have all kinds of things in there that act on the list and have "Clear List" still outside it.