@leocg
As all YT videos inside a playlist have &list=PL in the address, I used Bookmark Dupes extension in Expert mode to find all entries matching it. Then I manually deleted doubled ones.
Nex time before bookmarking new videos inside playlists I'll look in the address bar to see if
&list=PL is in, and delete it and all letters following.
Do more on the web, with a fast and secure browser!
Download Opera browser with:
- built-in ad blocker
- battery saver
- free VPN