Rated 3 out of 5 stars

I would agree with the other reviewers that the idea has promise but it's not quite there yet. Hitting the back link (after right clicking on the page) won't always take you back to the prior page. (Sometimes it does but not invariably.) Being able to right click and have the options for the home dash appear regardless of where you are on the page would be nice. Also, when it appears that I'm down to a single page on the home dash display and then I click on Shift-Alt-Cntl-D, I often find tons of other tabs still open. My bookmarks toolbar is already configured to include specific sites that I access occasionally (e.g., for work) but not with a high degree of frequency. These are easier to get to with the toolbar than HomeDash. Closing out of Firefox altogether using the X in the upper right corner, never seems to work at all. In short, it requires a lot of cognitive effort to use and I find myself feeling relieved to switch back to the familiar interface. I'm not ready to give up on it yet but it definitely needs further fine-tuning.

This review is for a previous version of the add-on (8.1-signed.1-signed). 

The issue with a broken "back" should be fixed in Home Dash 9. Your suggestion of right-clicking to move the icon has also been implemented!