A word of warning
Anyone using different browsers intensively will one want to find a way to sync bookmarks. I have been using Bookdog from the same developer for some years and moved on to Bookmacster. I did read the manual, read the help functions and there where periodes, sometimes months where Bookmacster did work as advertised and synced my bookmarks from multiple browsers over multiple locations and devices. But always my bookmarks were hosed every once in a while.
Of course I do have backups and did reset them, but try for yourself to reset the iCloud sync of bookmarks over multiple devices, you don't want to really do that. Past weekend I was working on a different location and added a lot of bookmarks. Yesterday I came home to discover that due to an error in Bookmacster I have lost them. Although I have no safe-sync limit, I have the backups, BM was complaining about safe-sync limits. So, hosed ... again ..
For me this is the last time I will use Bookmacster, this was one "hosing" too much.
I will now only use Bookmacster to sort and find duplicates which works well.
There is one BIG problem with this program, it isn't meant to be used by users. All the problems I have encountered during many years of use where probably not created by the developer not being capable enough, but by the clumsy interface. Don't get me wrong, I would love to use Bookmacster, but it is to unreliable. In all comments you can read exactly the thing, the interface sucks and the problem is complicated and one does have to read the manual.
The preferences are spread out over different panels, hidden under other other options and one really needs to search for settings like a safe sync. For me it feels like the developer wrote the application for himself. Of course he "knows the way" but he is obviously not capable in translating his skills and knowlegde into an app that can be used in a logical and especially organised interface.
That is what you van read in all these comments below, people who really try to use Bookmacster, because unfortunately there is no alternative for what is does, but run into problems and hard to find options.
So, after my last bookmarks mess up it's over, I will keep using BM for sorting and finding duplicates, but that's it. A pity, if the dev would partner up with someone who could help him to develop an user interface for customers it would become a killer app.