I miss my Bitdefender passwordmanger. Can I add any addons to Vivaldi - can' find it.
vivaldi://extensions or press "Ctrl + Shift + E" than press on "Get more Extensions" which will redirect you to the chrome extension store.
Most extensions that work in chrome will work in vivaldi - please note that not all work well especially those that connect to google accounts don't work.
For password managers you can use this link