Reader commenting is returning to Postmedia Network Inc.’s Sun newspaper websites after a two-year absence.

James Wallace, vice-president editorial for the Sun chain, says a technology upgrade to the websites of the Ottawa Sun, Toronto Sun, Winnipeg Sun and Edmonton Sun has made the reintroduction possible.

Wallace says readers can now make comments on the Sun websites by signing up through their Facebook accounts.

He says that forces more accountability and prevents unwieldy and toxic comments. The same policy was introduced in September 2015 by Postmedia for its National Post and Financial Post websites.

In December 2015, the Toronto Star closed commenting on its websites in favour of promoting comments readers share across social media.

The Globe and Mail says it encourages readers to comment on almost all of its news stories and blogs on its site.