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('+add +multiple +gmail' IN Boolean MODE) order by users desc
Multiple Forward for Gmail
Forward multiple emails with one click. Transfer and migrate all your emails.
Gmail Multiple TO alert
Send an alert if You have to multiple addresses in 'to' filed in Gmail. It's kind of GDPR secure