Bookmarks are simple enough, as long as you have both browsers installed. I haven't found a way to sync them by logging in with Google, but locally stored bookmarks work. To do this:
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Go to settings
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Type 'Browser' into the search bar
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Under 'Default browser' there should be a button that says 'Import bookmarks and settings'
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Click it, select the browser to import from, and select what you want to import
I know it's not what you originally wanted, but at least it's a partial solution.
Hope it helps!