Your Facebook comments can be visible beyond your friends. A comment on public content does not become private because your own profile posts are friends-only. Start with the post or group where you commented: the audience there matters more than how quiet your profile looks.
Comments in public groups
Meta says new posts and comments on new content in public groups are visible to anyone, including people who are not on Facebook. Your friends do not have to be members of the group to fall within that public audience.
A comment can therefore be readable without appearing on your profile grid. Open the original conversation when checking what is still visible.
Comments in private groups
Private-group content has a restricted audience. Other members can still read what you share there; private does not mean visible only to you. Check the group's current privacy status before treating the conversation as public or private.
When a private group becomes public
Meta introduced private-to-public group conversion in November 2025 with protections for earlier content. Posts, comments and reactions shared while the group was private remain visible to people who were members before conversion, plus admins and moderators. New public-group content has a public audience.
That timing matters. Do not assume every old comment becomes public when a group changes, or that a new comment is private simply because you originally joined a private group.
Read Meta's group-privacy explanation
Comments on profile posts and Pages
For a post you published, review that post's audience. For someone else's post, check the audience of their content. Meta's privacy policy describes activity on public Facebook Pages and other public content as public information.
A control for who can comment on your posts answers a different question: who may add a reply to content you publish. It should not be read as a setting that hides comments you have left elsewhere.
Read Meta's sharing and comment-control guidance
Visible is different from appearing in Feed
Whether someone can open a conversation and read your comment is separate from whether they encounter it in Feed. Not seeing a comment in one person's feed does not establish that it is private. Check the source and its audience rather than relying on that one view.
Review comments you no longer want online
Start with the conversations that concern you. If you no longer want a comment attached to your account, review the comment itself rather than relying only on a profile setting. Save anything you need before removing it.
The Facebook comment guide explains the extension's supported review and cleanup. Scanning and review are free; cleanup is an optional paid step. Only comments available in the supported Activity Log view can be found, so a scan is not a search of every group or Page.