Comment by starchturrets

Adguard is free and supports custom elements. As a bonus, it’s open source. These are the rules I use:

www.reddit.com##.xpromopill

www.reddit.com##.active.xpromopopup

www.reddit.com##.amp.snackbar

www.reddit.com##.navframe > .xpromominimal.dualpartinterstitial

www.reddit.com##.xpromoadfeed