Observed Signal · Nov 11, 2026 · Technical Release · Source: t3n · Impact: 1/5 · Sentiment: Positive
Windows 11 Quietly Opens Browser Copies for Links; Firefox Tests Fix
Windows 11 has been quietly launching a second instance of the default browser when a user clicks links outside the browser, causing noticeable delays. This process checks if the browser is already running, then closes the temporary instance and passes the link to the original, resulting in a brief delay. Microsoft has addressed this inefficiency in its Edge browser through a feature called 'Accelerated Warm Launches,' reducing link handoff time from 70 milliseconds to just 3 milliseconds. Mozilla is now testing this feature for Firefox, but access requires an unlock code from Microsoft, and challenges remain, including handling multiple Firefox profiles and obtaining Microsoft's approval. This optimization could potentially benefit other browsers like Chrome if they adopt similar measures.
Technical improvement in Windows browser launch performance; relevant to ad-supported browsing but not directly impacting AdTech industry.
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Key Takeaways & Evidence Grounding
- Windows 11 opens a second browser instance when clicking links outside the browser, causing delays.
- Microsoft's 'Accelerated Warm Launches' feature in Edge reduces link handoff time from 70 ms to 3 ms.
- Mozilla is testing the feature for Firefox, but it requires an unlock code from Microsoft.
- Challenges include handling multiple Firefox profiles and needing Microsoft's approval.
- The feature is currently hidden behind an unlock code from Microsoft.
Connected Companies & Entities
“Microsoft has implemented 'Accelerated Warm Launches' in Edge to speed up browser starts.”
“Mozilla is testing the feature for Firefox.”
Ontology Mapping & Concepts
Related Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
Windows 11 adds Low Latency Profile for faster app launches
Microsoft has introduced a new "Low Latency Profile" in Windows 11 that speeds up application startup by briefly increasing CPU performance. The feature is delivered with the August update KB5121003 and alters CPU usage during app launches so the processor can run near full capacity for short bursts. Tests reported by Windows Latest show meaningful reductions in load times for Web-based apps (for example, the Weather app loading time fell from about eight seconds to four). The update is rolling out in waves to users.
Microsoft rules out AI as cause of 30-hour outage
Microsoft experienced a major outage of its Microsoft 365 services, including Outlook and Teams, lasting approximately 30 hours from November 12 to November 13. The company attributed the disruption to a botched network capacity upgrade, ruling out cyberattacks and A.I. as causes. Microsoft apologized to customers and partners via X and plans to publish a full post-incident report. The outage affected businesses and government agencies in at least 74 countries, with some firms resorting to paper and fax machines, delaying announcements, and impacting A.I. services like Claude and ChatGPT that rely on Microsoft 365 connectors. Under Microsoft's Service Level Agreement (SLA), customers may be eligible for service credits: 25% for uptime below 99.9%, 50% below 99%, and 100% below 95%. Companies must file claims by the end of December.
Microsoft Outage: Causes and Economic Impact
On November 12-13, 2026, a major Microsoft outage disrupted cloud services globally, affecting Outlook, Exchange Online, Microsoft Teams, and Copilot for many hours. The cause was an internal server infrastructure failure, aggravated by automated health checks that took servers offline, leading to cascading load issues. Microsoft deployed a software patch to restore services. Insured losses are estimated between $300M and $500M, with total economic damage potentially reaching billions. German companies like Debeka, Reuffel, Schott, Boehringer Ingelheim, and Commerzbank reported communication issues, but critical operations like production and banking remained stable. The incident highlights growing dependency on few cloud providers and sparks discussion on digital sovereignty and resilience.
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