Bare bones add-on that does what it says it will do, and nothing more. Easy enough to configure once you get the hang of it, and does exactly what it's instructed to do. However, it's lacking in some quality of life features that would make it a bit less of a chore to use, if you're juggling several actions. I'd like an option to group rules together in folders, maybe even turn them all on or off at once. My list of rules is growing a bit long.

Occasionally, an enabled rule will not trigger, thought it might have to do with how quickly the elements on a webpage load. It's easy enough to either refresh the page or manually do what you wanted it to do.

Also, as of this writing, the feature to re-order rules does not work. I've re-ordered my rules and clicked "save changes" several times, but opening the tab puts them back into the default order. This doesn't affect its function, it's just a minor annoyance.

EDIT: Added star for dev response :)