If it helps , these two extensions are helpful https://addons.mozilla.org/en-US/firefox/addon/checkmarks-web-ext/ https://addons.mozilla.org/en-US/firefox/addo

If it helps , these two extensions are helpful https://addons.mozilla.org/en-US/firefox/addon/checkmarks-web-ext/ https://addons.mozilla.org/en-US/firefox/addon/checkmarks-we... clean up links and fav icons ( good for first time install for not making the toolbar as ugly with blank icons) https://addons.mozilla.org/en-US/firefox/addon/bookmarks-clean-up/ https://addons.mozilla.org/en-US/firefox/addon/bookmarks-cle... helps get rid of bookmarks with a few feature from the first one