RR Helper is a developer tools chrome extension. it's a free extension , it has 7 active users since released its first version, it earns an average rating of 0.00 from 0 rated user, last update is 4070 days ago.
Please see: https://confluence.richrelevance.com/confluence/display/~sbrown/RR+Helper
You could download the latest version crx file or older version files and install it.
English.
You could find more help information from rr helper support page.
You could send emails to publisher, or check publisher's website.
More about manifest_file of rr helper.
You could click to report abuse of rr helper.