Manifest v3 has been out for a while now, they are just blocking manifest v2. There will probably be a way to fix it, but there is always other browsers like brave that have built in adblockers that block basically anything. While people were worrying about whether they will be blocked from YouTube and ublock was having issues that were soon fixed, brave never got a single pop-up asking to disable your adblocker once. Also you can use some VPN adblockers that work through blocking it from your network like AdAway.