Facebook Begins New Year in Fixer-Upper Mode

Social-media giant strives to balance its push for growth with a commitment to improve security across platforms

One year ago Friday, Mark Zuckerbergset his sights on “fixing” Facebook Inc. That remains very much a work in progress.

At the top of the 2019 to-do list: find a balance between the social-media giant’s deeply held drive for growth and its heightened commitment to improving safety and security across its many platforms.

Those tensions were...