Canvas Blocker is a canvas extension for chrome. also, it is canvas blocker extension. it's a free extension , it has 176 active users since released its first version, it earns an average rating of 0.00 from 0 rated user, last update is 1544 days ago.
This protects the students privacy.
You could download the latest version crx file or older version files and install it.
English.
You could find more help information from canvas blocker support page.
You could send emails to publisher, or check publisher's website.
More about manifest_file of canvas blocker.
You could click to report abuse of canvas blocker.