Description from extension meta
Control Accept headers for image requests to test WebP/AVIF support
Image from store
Description from store
**Who needs this?**
Web developers and QA engineers testing if their websites correctly serve WebP/AVIF images with proper fallbacks for older browsers.
**What problem does it solve?**
Modern browsers support WebP and AVIF, making it difficult to test fallback behavior. This extension lets you simulate browsers with different image format support.
**Available Modes:**
• **No WebP/AVIF Support** - Request only PNG/JPEG/GIF (legacy browsers)
• **WebP Only** - Prioritize WebP format
• **AVIF Only** - Prioritize AVIF format
• **OFF** - Default browser behavior
Simply click the extension icon and select a mode. Changes apply instantly to all new image requests. Perfect for testing CDN configurations, debugging image delivery issues, and ensuring your site works for all users.