ColorZilla
Advanced Eyedropper, Colour Picker, Gradient Generator and other colourful goodies
Easily configure custom HTTP request headers, redirect patterns, and manage traffic settings from a clean UI.
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NetShift is a lightweight browser extension that gives developers, tester, and power users full control over web requests.
Easily modify request headers matching specific domains to test user agent strings or authorization keys, and set up redirect paths for testing alternative routes.
How to use it:
1. Tap the NetShift logo in the browser bar to open the popup.
2. In the Headers tab, configure your domain matching pattern and values to override, then tap Add Header Rule.
3. In the Redirects tab, set up original and destination URL filters to redirect paths, then tap Add Redirect Rule.
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Advanced Eyedropper, Colour Picker, Gradient Generator and other colourful goodies
The Tag Assistant extension works with Tag Assistant to help troubleshoot installation of gtag.js and Google Tag Manager.
Spoofs & Mimics User-Agent strings.
Lighthouse is an open-source, automated tool for improving the performance, quality, and correctness of your web apps.
Instant website analysis, AI traffic insights, and SEO metrics at your fingertips.
Adds a toolbar button with various web developer tools.