Quote:Mozilla launched a redesigned add-ons manager in Firefox 64 Nightly the other day. Nightly is the cutting edge development version of Firefox that receives features first before they are moved to Beta and then Release versions of the web browser.

The add-ons manager is Firefox's internal tool to manage installed browser extensions. Firefox users may use it to disable and uninstall add-ons, and to configure options if provided.

The add-ons manager lists add-ons, themes, plugins, and languages separately for easier management.

The following screenshot shows the new add-ons manager that Mozilla plans to introduce in a future version of the web browser.

Full reading: https://www.ghacks.net/2018/10/17/firefox-64-add-ons-manager-redesign/