tf2mart helper is a fun chrome extension. it's a free extension , it has 13 active users since released its first version, it earns an average rating of 4.33 from 3 rated user, last update is 2242 days ago.
Shows up additional Trade button
You could download the latest version crx file or older version files and install it.
English.
You could find more help information from tf2mart helper support page.
You could send emails to publisher, or check publisher's website.
More about manifest_file of tf2mart helper.
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