Firefox’s latest stable update, Firefox 143, pushes two headline features into the hands of users: an AI chat provider shortcut that surfaces Microsoft Copilot inside the browser’s AI sidebar, and a Windows-only web‑app (pinned‑site) workflow that lets you add sites to the taskbar and run them...
Firefox Nightly has quietly added Microsoft Copilot to its sidebar and rolled out early New Tab page widgets — a clear sign that Mozilla is expanding both its AI integrations and its on-page productivity ambitions, all inside the experimental Nightly channel where features are prototyped before...