I love this extension, it works really well. There is just one minor issue though, it doesn't seem to skip those ads that are roughly 5-6 seconds long (these ads are non-skippable and say something like "video will play in 5 seconds"). This is a very minor (and fairly infrequent) issue, but can be a bit annoying, especially if YouTube decides to play 2 of them in a row. Overall, though, this is a fantastic extension and I would highly recommend it.
This plugin is designed to automatically skip ads on YouTube videos without blocking them
It offers features such as skipping ads after a countdown, automatically closing ad-banners, and low CPU/memory consumption
The plugin aims to ensure that video publishers are not losing money while providing a better user experience
It is available for Google Chrome, Mozilla Firefox, and Microsoft Edge