Check keyword difficulty right from your browser! Just put in your Keysearch API key and you can check the SEO keyword difficulty of any keyword. To obtain a Keysearch API go to http://www.keysearch.co and register for an account.
If you think this add-on violates Mozilla's add-on policies or has security or privacy issues, please report these issues to Mozilla using this form.
Please don't use this form to report bugs or request add-on features; this report will be sent to Mozilla and not to the add-on developer.