CentOS 7.x Thunderbird remove duplicates option

Remove duplicates is a fairly useful option provided by kmail. To get same option in Thunderbird we need a addon.

Install addon from https://addons.mozilla.org/en-us/thunderbird/addon/remove-duplicate-messages-alte/
Go to Addons -> Settings -> Install from file -> restart
Right click and choose remove duplicates. Also have a look at preferences for this addon.

Anonymous