It is Spyware, steals user data and all history of visited URLs. More info: https://robertheaton.com/2018/07/02/stylish-browser-extension-steals-your-internet-history/
Hi, you can take full control over the data you share and can amend these details from the settings page. Please feel free to read the Stylish Privacy Policy for more information regarding this issue: https://userstyles.org/login/policy
