Microsoft is testing a new "Fix an issue" feature in the Canary build of the Edge browser. This undocumented addition appears in the Settings sidebar and links to a dedicated internal diagnostic page. While the interface is currently a placeholder, it signals a shift toward automated browser maintenance.

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The Cybersecurity and Infrastructure Security Agency has expanded its Known Exploited Vulnerabilities catalog to include three new security flaws. These vulnerabilities affect Cisco Catalyst SD-WAN Manager, Google Chrome's V8 engine, and Arista Extensible Operating System. Federal agencies must implement remediations or mitigations by June 23, 2026, to protect their environments from active threats.

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Google Chrome is entering the final phase of deprecating Manifest V2 extensions in favor of the newer Manifest V3 standard. Developers have confirmed the removal of internal flags that previously allowed users to bypass restrictions on older browser add-ons. This change effectively disables popular extensions like the original uBlock Origin that rely on the legacy framework.

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A coalition of browser developers has issued an open letter to Microsoft's CEO demanding an end to anti-competitive practices within the Windows operating system. The group alleges that Microsoft uses its dominant market position to unfairly promote the Edge browser through various integrated tactics. These accusations include the use of rebate programs that discourage hardware manufacturers from pre-installing competing web browsers on new devices.

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Microsoft has officially discontinued the Collections and Sidebar features in Edge version 149 to focus on AI integration. Collections previously allowed users to organize web research, shopping items, and travel plans with rich visual previews and notes. This change marks a significant shift in the browser's development strategy under the current Microsoft AI leadership team.

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An autonomous AI agent recently discovered 21 previously unknown vulnerabilities in the FFmpeg media library, some of which had remained hidden for over 20 years. These flaws include heap and stack overflows in various parsers and decoders that are widely used across numerous video processing applications. The discovery highlights how AI tools can now perform deep security analysis of complex codebases at a significantly lower cost than traditional manual methods.

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Microsoft is phasing out the custom master password feature in the Edge browser's built-in password manager. Starting June 4, 2026, the browser will transition all users to device-based authentication methods for protecting saved credentials. This shift aims to eliminate the risks associated with static primary passwords that can be stolen or shared.

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