Flagwall is a paywall extension for chrome. it's a free extension , it has 37 active users since released its first version, it earns an average rating of 0.00 from 0 rated user, last update is 1877 days ago.
Flagwall will scan each page for text hyperlinks to known domains that operate a paywall. It will flag each of these links with a dotted red underline so that you know before you click on it that it's likely to hit you with a paywall. Flagwall does not attempt to block or subvert paywalls in any way. It merely exists to give the user an option of avoiding the typical bait and switch of following a link, only to be faced with a paywall.
You could download the latest version crx file or older version files and install it.
English.
You could find more help information from flagwall support page.
You could send emails to publisher, or check publisher's website.
More about manifest_file of flagwall.
You could click to report abuse of flagwall.