Searching the internet, I can see that this issue has been reported many time before but I actually have seen an actual answer to it. It would be nice if Chrome officially responds to it since it seems like a prevalent problem that's been reported...
Anyone upgrading to the new Chrome stable build 42.0.2311.90 and would like to revert back to the standard Bookmark Manager, here is how....
Type about:flags in search bar, press enter.
Disable flag:
Enable Enhanced BookmarksMac, Windows,...