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nightly
About this tag
The nightly tag on WindowsForum.com covers discussions about pre-release browser builds, primarily Mozilla Firefox Nightly, which serves as an experimental testing ground for features before they reach stable releases. Recent threads explore Firefox Nightly's integration of Microsoft Copilot in the browser sidebar, highlighting AI chat and summarization capabilities alongside privacy concerns. Another thread examines a change in Firefox Nightly's Private Browsing mode, where users are now prompted to keep or delete downloaded files instead of silently removing them. These topics reflect broader themes of browser development, user privacy, and the gradual introduction of AI features into everyday software, relevant to Windows users who test or follow cutting-edge browser updates.
Firefox Nightly users can now summon Microsoft Copilot from the browser sidebar — an optional, opt‑in hook that exposes Copilot’s chat, voice and summarization capabilities inside Firefox while reopening a broader debate about privacy, platform boundaries, and the creeping normalization of...
about:config
ai browser
ai integration
ai-sidebar
browser extensions
cloud ai
copilot
developer ecosystem
document summarization
enterprise privacy
enterprise security
extensions
firefox
firefox-nightly
local models
microsoft copilot
model routing
multimodal ai
nightly
on-device ai
open source
privacy
security
smart mode
third-party integrations
user choice
vendor neutral
voice assistant
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...
ai browser
firefox
firefox-labs
firefox-nightly
image format
jpeg
lists-widget
microsoft copilot
multi-provider-ai
new tab page
nightly
on-device ai
privacy
productivity
timer widget
user choice
Mozilla is changing how Private Browsing handles downloaded files: instead of silently removing certain files when a private window closes, Firefox Nightly is now prompting users and offering a new setting to keep or delete downloads, a behavior expected to land in Firefox 143 if the experiment...