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TestYourBrowser™Diagnostics

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All pages on TestYourBrowser™; browser tests, readiness checks, and step-by-step fixes.

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Browser Updates

Fix Slow Browser Performance for Web Apps (Run the JavaScript Speed Test)If web apps feel laggy or stutter, run our JavaScript Speed Test to baseline performance, then use these targeted fixes to restore responsiveness in Chrome, Edge, Firefox, and Safari.
Fix 'Your Browser Is Not Supported' and Wrong User-Agent (Run the Browser Test)Apps refusing to load because your browser looks old? Run the Browser Test and User-Agent check, then turn off compatibility modes, remove spoofers, and update safely.
Fix 'Aw Snap' and STATUS_ACCESS_VIOLATION Crashes in Chrome or Edge (Run the Browser Test)Tabs keep crashing with 'Aw Snap'? Run the Browser Test and JavaScript Speed Test, then clear the flags, extensions, and memory issues that cause repeated crashes in Chrome, Edge, or Chromium.
Fix 'H.264 Not Supported' for Calls and Streams (Run the Codec Test)Meet or Teams says H.264 is missing? Run our Codec Test, then restore safe H.264/AVC playback in Chrome, Edge, or Firefox without shady downloads.
Fix Widevine Content Decryption Module Missing in Chrome (Run the Codec Test)Netflix or Prime Video errors about Widevine? Run our Codec Test, then restore the Widevine Content Decryption Module in Chrome, Edge, or Firefox without risky downloads.
Update Chrome, Firefox, Edge, or Safari Safely (Run the Browser Test)Outdated browser warnings? Run our Browser Test, then follow these update steps for Chrome, Edge, Firefox, and Safari—including fixes when updates are blocked by policy or disk space.

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