At some sites most of ads wasn't blocked

If the blocker is turned on and i open my browser, i cant use any website, it will load forever! If browser is opened and i restart the blocker, only then it works fine , as it should be.

ad blocking not working in YouTube.

This a very frustrating pop up blocker. It either blocks ALL or none. Most pop up blockers show a bar on the screen asking you if you want to allow a popup and you can select no, one time only, or always. ublock origin doesn't do this and it is very frustrating because there are times you definitely DO want to allow pop ups.