Rated 5 out of 5 stars

yazan: haitham tarih: Kas. 14, 2017 ·

Please update this add-one I am using it every day but it is not working now after Firefox 57 update. Please Update.

This review is for a previous version of the add-on (5.10). 

yazan: Oleksandr (Geliştirici) tarih: Kas. 14, 2017 ·

Unfortunately, WebExtensions (the new API for Firefox 57+) does not have the functionality for the correct operation of this addon in Firefox.

But you can install Firefox 52 ESR and enjoy work until June 2018
https://www.mozilla.org/en-US/firefox/organizations/faq/