I am not very lucky with the Browser extensions. I make several attempts before finding the perfect app/extension for me. Sometimes they are very popular, used by many, with 5 stars or more, but in my case they work badly o give problems. Sometimes the less unexpected gave me the necessary result.
So. Here it is a quick list of my preferred extensions. And why.

Bitwarden
A password manager. Similar to the one included in the Browser itself.
Bookmarks Clean Up
Not very famous. But it worked. Duplicates easily deleted. Yea!
Grammarly
One of those rare cases in which an advertising (on youtube) catch your attention, and gives you back the ideal app for you. I can’t make it without it.