Chrome //
Extensions 
Chrome
Web store
select chrome_id_no,plugin_tag_line,plugin_name,plugin_icon,sitemap_url,oldvsnew_comment from final_chrome_totaldata_sept2022 where MATCH(plugin_name) AGAINST('+duplication' IN Boolean MODE) order by users desc
Duplication Killer
If the url of tab you opened is the same as one you've already opened, close the new tab and activate the old one.