My experience: Brave’s Sync (Muon; Chromium version 0.59.34 and later) appears to add all bookmark entries to all active sync-enabled instances. The current arrangement more or less assures many duplicated entries as well as the reappearance of old / deleted entries. I find this worse than useless. It necessitates expending considerable time and effort cleaning up the resulting mess. Thank you Department of Redundancy Department.
What follows works for me with one 32-bit and two 64-bit Windows 7 desktop installations. It’s 110% empiricism. It’s entirely possible what I did won’t reproduce the same results on other installations; and if you’re using a different operating system, what I do may have no relevance. Free advice; worth every penny.
Be warned: my alternative to Brave Sync is sort of like taking an ax to a lifeboat to test a personal flotation vest. There may be a better way. Two consequences either of which might be deal-breakers for others: first, some (but not all) preferences are restored to their defaults; second, extensions must be re-installed. That said, my experience is that once I personalize a browser’s preferences and add bookmarks, updating preferences and bookmarks is infrequent; further, it seems with subsequent Brave releases that fewer preferences are restored to defaults. Bravely onward.
Search your computer for an entry similar to:
where C:\ is the drive where Brave is installed and ***** is your user name. If you inspect the properties of this entry, it should have hundreds of sub-directories (folders) and thousands of files. I transfer this entry to the equivalent location on the target computer. I use Microsoft’s free SyncToy 2.1 application: https://www.microsoft.com/en-us/download/details.aspx?id=15155 SyncToy’s “Echo” action transfers entries from source to target that don’t currently exist on the target; updates older existing entries on the target; and deletes entries on the target that aren’t on the source. Other users commenting on Sync issues suggest other third-party sync products, e.g.: https://freefilesync.org/download.php
I do this with the computers physically networked through a common router, but that’s not required. All that’s required is that the computers be available on the same network. Physically networked, the operation takes about a minute.
Unknown: I suppose it’s possible to upload the source data either to cloud or portable storage and subsequently copy the stored source data to a target. I haven’t tried this. The benefits of using SyncToy – this is key – is that I define what’s the source and what’s the target.
Despite the nuisance of having to re-set some preferences (which I prudently made note of beforehand) and reinstall extensions, there’s one overarching benefit to this approach: in addition to updating bookmarks on the target computer(s): personalized extension preferences are transferred too. If you use any extension with personalized preferences, you know: this is Very Good.
As noted above, there may be a better way to do this. And beyond the two shortfalls I mentioned, my workaround may have other perils of which I’m unaware. Perhaps Brave will alter its implementation of Sync to make it actually useful. In the meantime, what I described works for me.