Fantastic! Rated 5 out of 5 stars

I just discovered this add-on yesterday and I already love it. Firefox is my main browser and I've been struggling with having too many tabs open in it for years. As a workaround, I’ve been running multiple instances of Firefox using different profiles in addition to using other browsers just to minimize the number of tabs I have open in Firefox.
Not only did I cringe every time I had to load or restart Firefox, but I was also frustrated with Firefox bogging down after running for several hours with numerous open tabs. This was especially frustrating because the only way I could get Firefox to perform well was to restart it! (And wait for all the tabs to reload.)
Now that I’m using this wonderful extension, however, I don’t have to worry about having to load or reload a tab until I actually click on it. Moreover, Firefox doesn’t bog down anymore even after being open all day. Kudos to the developer.