I just started using Adguard, and I think it is good and ready to replace my old browser extension, but I found something interesting. Every time I visit a webpage, some scripts get injected into the browser. The scripts are from injections.adguard.org and really big. The first script has a domain which is changing all the time, so this script is going to be loaded in every webpage that has a unique domain. The second script doesn't have a domain query, but the size is over 1MB (without compression). I bet it is bigger than the overall script size of many webpages. The third script is async. I don't know what it's for, but the URL says the type is sfbr-script. This particular type of script gets loaded very slowly. It's over 5s in most cases (I'm in China, but I have a VPN on all the time). I don't know how Adguard works, but I think it's not healthy and should be tackled with.