Pretty good, does the job. I personally find the popup a bit confusing, but okay.

However, I'd love an easier way to check if a tab has autoreload enabled (now, we must check the toolbar icon color when on a tab, so I need to visit each tab that I expect to have auto-reload enabled, and check the toolbar icon color). I also notice issues with the restore feature, I often need to manually re-enable the reloader, it does not get restored (I typically monitor 2 pages, keep them pinned, and I need to re-enable Tab Reloader on those two tabs when I close Firefox).