avast! browser cleanup alerts TLSA Validator as a risk!

What is so wrong with this Google Chrome extension. Found normally to come from Google’s Webshop, so Google trusts it as legit.
What are the risks. Re: https://chrome.google.com/webstore/detail/tlsa-validator/gmgeefghnadlmkpbjfamblomkoknhjga

polonus

Is this risky also: https://www.huque.com/bin/gen_tlsa read: http://www.internetsociety.org/deploy360/blog/2013/12/want-to-quickly-create-a-tlsa-record-for-dane-dnssec/

This made me stumble on this test site. https://xmpp.net/result.php?domain=forum.avast.com&type=client
No DNSSEC TSL error failed.

For a good jabber client: https://xmpp.net/result.php?domain=jabber.de&type=client


<a href='https://xmpp.net/result.php?domain=jabber.de&amp;type=client'><img src='https://xmpp.net/badge.php?domain=jabber.de' alt='xmpp.net score' /></a>

and a list: http://www.jabberes.org/servers/

polonus