Firefox
The latest Firefox coverage — news, analysis, and updates from the WindowsNews.AI desk.
Firefox Nightly Now Lets You Chat with Copilot Without Leaving Your Tabs
Firefox Nightly users can now add Microsoft Copilot to their browser's sidebar, bringing the AI assistant's chat, voice, and page summarization capabilities into Mozilla's experimental channel. The...
Firefox 115 ESR Gets Another Lifeline: Security Updates for Windows 7 Through March 2026
Mozilla has once again extended the support window for Firefox 115 ESR, giving users on Windows 7, Windows 8/8.1, and macOS 10.12-10.14 a reprieve until at least March 2026. The move, confirmed in...
Microsoft Copilot Lands in Firefox Nightly: Full AI Sidebar with GPT-5 Smart Mode Sparks Privacy Debate
Mozilla has delivered a jolt to the browser AI race by quietly integrating Microsoft Copilot into Firefox Nightly’s built-in sidebar. The move, spotted in the latest experimental builds, brings the...
Stop Windows from Hoarding Gigabytes of Junk: The Safe Cleanup Plan You Need
If you’ve ever stared at a “Low Disk Space” warning and wondered where all your gigabytes went, you’re not alone. The answer often hides in plain sight: Windows itself, along with your apps,...
Firefox Update Ends Annoying Virtual Desktop Switching on Windows
Mozilla has quietly addressed a long-standing nuisance that has frustrated Windows productivity users for nearly a decade: external links opening in Firefox will no longer yank you to a different...
KB5063878 Breaks MSI Self-Repair: UAC 1730 Hits AutoCAD, Firefox, SAP
Microsoft’s August 2025 cumulative security updates have broken a critical installer behavior, triggering unexpected User Account Control (UAC) elevation prompts and Windows Installer error 1730...
VLC 3.0.23 Adds Dark Mode and AV2 Decoder: Here Are 9 Open-Source Apps Every Windows Setup Needs
VideoLAN’s VLC media player just received its 24th update to the 3.0 branch, bringing a dark mode option for Windows and Linux, native ARM64 support for Windows, and a massive number of stability...
Firefox Nightly Tests Prompt to Keep or Delete Private Browsing Downloads, Ending Silent File Removal
Firefox Nightly builds are now testing a long-requested privacy tweak: a prompt that asks users whether they want to keep or automatically delete files downloaded during private browsing sessions....
Firefox Nightly 143 Crashes on Older Windows 10: The 'Missing DLL' That Isn't Really a DLL
Firefox Nightly 143 abruptly stopped working on Windows 10 versions older than 1803 in late 2024, leaving testers with a baffling error about a missing DLL that wasn’t actually a DLL at all. The...
Firefox Nightly Adds Native Google Lens, Closing Chrome's Visual Search Lead
Mozilla has started testing a native Google Lens integration in Firefox Nightly, bringing the browser's visual search capabilities in line with Chrome and Edge. The experimental feature, hidden...
Firefox 141's Local AI Tab Grouping Sparks CPU Spikes and Battery Drain—Here's How to Tame It
Mozilla’s Firefox 141 update shipped with an ambitious privacy-first feature—on-device AI that automatically groups tabs and suggests names—but early adopters are reporting a frustrating side...
Windows 10 Gets Edge, WebView2 Security Patches Until 2028 Without ESU
Windows 10 users can keep their Edge browsers and web‑based applications secure for three more years than expected. Microsoft has confirmed that both Microsoft Edge and the WebView2 Runtime will...