Notice there is no file extension. It’s just a file called Bookmarks . (There’s also a Bookmarks.bak file right next to it—Chrome’s little apology gift, an automatic backup in case things go wrong.)
Of course, there is the easier way. You could just turn on Chrome Sync and let Google babysit your bookmarks across the ether. That works—until you lose your password, or until the sync decides to duplicate every bookmark three times. chrome bookmarks path
So next time you hit Ctrl+D, give a little nod to the hidden highway behind your screen. It’s not glamorous. It doesn't have a UI. But it holds the map to everywhere you’ve ever wanted to go. Notice there is no file extension