Works perfectly, thanks :)

So far the only ok replacement to uBlock Origin zapper I could find. Unlike uBlock Origin zapper, it does not seem to keep memory of what you zapped, if you refresh the page, you'll have to zap again. Good enough for zapping the annoying Slack banner about downloading their Slack app.

works well and doesn't lag the entire page, unlike ublock origin

can't activate zapper mode even with shortcut.

The ublock origin's element hider isn't working on youtube righ now, but this extension works.