Tohoku Grade Manager is a accessibility chrome extension. it's a free extension , it has 2 active users since released its first version, it earns an average rating of 0.00 from 0 rated user, last update is 2417 days ago.
Enjoy ! <(°_°)<
You could download the latest version crx file or older version files and install it.
日本語.
You could find more help information from tohoku grade manager support page.
You could send emails to publisher, or check publisher's website.
More about manifest_file of tohoku grade manager.
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