Allows posts and pages to be archived so you can remove content from the main loop and feed without having to trash it.

(15)

Allows you to create and edit notes that appear on the admin dashboard

(9)

Upload files from an url to wordpress media library, either enter file urls in an onsite input box or click a bookmarklet.

(8)

Allows you to create duplicate images in the media library.

(7)

HSTS is HTTP Strict Transport Security, a means to enforce using SSL even if the user accesses the site through HTTP and not HTTPS.

(7)

Simplify the process of adding support for custom taxonomies for Users. Just use register_taxonomy and everything else is taken care of.

(7)

Simply enable Instant Articles for Facebook on your WordPress site. None of the bloat

(6)

Decreases the chance of your legit emails being marked as spam by providing a text alternative within the one email.

(5)

Automatically creates Wayback Machine snapshots of site, including archives

(5)