Multi-Browser Vibe Website Testing

I need a careful software tester to put my Vibe-coding website through its paces. The scope covers functional, usability and performance testing across both desktop and mobile experiences. On desktop I must at minimum see solid coverage in Google Chrome; if you can highlight quirks that might appear in Firefox or Edge, that insight is welcome too.

Here’s what I expect back from you:
• A concise test plan outlining scenarios for the three requested test types.
• Detailed defect reports with clear reproduction steps, screenshots or short clips, and priority tags.
• A performance snapshot that flags load-time bottlenecks or resource hogs, plus suggestions for quick wins.
• A final summary that ties findings to user impact so my dev team can act fast.

You may use any modern toolset—browser dev tools, Lighthouse, JMeter, or your favourite mobile device farms—as long as the results are reproducible. Keep communication transparent and, where possible, bundle fixes or work-arounds into your notes so we can shorten the feedback loop.