Please follow the below guide on how to backup bookmarks and passwords in chrome: 


Bookmarks:

Step 1: Open the Chrome menu, point to Bookmarks, and then click Bookmark Manager.

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Step 2: Click the three-dot icon to the upper-right corner of the Chrome window.

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Step 3: Select the option labelled Export Bookmarks.

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Step 4: Specify a location within local storage to export the bookmarks to, and then click Save.

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Passwords:

Step 1: Open the Chrome menu, and then click Settings.

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Step 2: Click Passwords.

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Step 3: Click the three-dot icon next to Saved Passwords.

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Step 4: Click Export Passwords.

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Step 5: Click Export Passwords to confirm.

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Step 6: Specify a destination, and then click Save.

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Once these have been backed up you can proceed to import them into Edge, please see import passwords into edge guide