Rated 4 out of 5 stars
Been using it for a month with no issues. Works great.
Would be nice to have an option for opening the new tab in the background.
When I originally made this add-on, the add-on builder SDK didn't have an easy way to use preferences; more importantly, I had very little idea how add-ons worked. I've played with them a bit more, and the SDK now also has support for preferences. I'll try to implement this soon. To be honest, it was something I'd wanted from the beginning, but a lack of experience and knowledge forced me to release it so.
Edit: submitted a new version with the option.