Great extension, I use it on Firefox and in the Vivaldi browser.

非常牛逼的一个插件

Great app!
Reliable and convenient. 10 out of 10.

I Like this.

I used xmarks for a long time until it stopped working. This addon was the only usable replacement to manage my bookmarks!

Just so useful. With Chrome getting more and more bloated, I've been trying out Firefox. Now I use both, one as my work based browser and the other to have a few personal pages open (my email, Facebook etc.). This is a great way to know any bookmarks are kept up to date ni both browsers.
Just brilliant in the way it works.