Firefox 52 to Allow Us to Send & Open Tabs from One Device to Another with Sync
Atualizou para o Firefox 52 e ficou sem plugins NPAPI? Saiba resolver | Dicas e Tutoriais | TechTudo
Mozilla to Drop Support for All NPAPI Plugins in Firefox 52, Except Flash
GitHub - TarekJor/Firefox-52-ESR-legacy-addon: [WIP] A curated list and XPI files of Mozilla Firefox browser extensions, addons, themes from addons. mozilla.org, before XUL-based purge blackout