Found on this page
Smudge catches the usual things — email addresses, phone numbers, card numbers, payment addresses and ID numbers. It will miss names, addresses, and anything written in an unusual way. Look over the page yourself before you share it. Untick anything you'd rather leave visible.
Blur it yourself
Click anything on the page to blur it, or click a blurred thing to bring it back — for whatever Smudge missed. Press Esc on the page when you're done.
Across pages
Come back to a page and its blurs come back too. Chrome will ask once to let Smudge onto this site. Lasts until you press Clear all blurs or close the browser.