I’d recommend Standard Unix Password Store. I’ve been using it for two years and it works fine. You have to solve synchronisation by yourself i use git for it but you can also use rsync or syncthing or anything else. It also has extensions for most web browsers includong firefox and chrome. It has clients for android ios windows and unix like operating systems. You can also use it with dmenu or rofi like i do.

Its great. It has minimalistic ui which is verry readable and its easy to find different options and buttons. I like it much better than reddit.