ColorZilla.com is a comprehensive online resource for color-related tools and information. It offers a browser extension that allows users to pick colors from any webpage, create custom color palettes, and generate gradients effortlessly. The website also provides a color picker tool, featuring an advanced editor, eyedropper, and other useful features for precise color selection. Additionally, ColorZilla.com offers a color converter to easily switch between various color formats. Users can explore a wide range of color-related articles, tutorials, and resources to enhance their understanding of color theory and application. Overall, ColorZilla.com is a valuable platform for designers, developers, and anyone interested in working with colors.

The first version was released almost 13 years ago in September 2004. Because the core of the ColorZilla codebase was written in the very early days, it used fairly low-level APIs and services.blog.mozilla.orgColorZilla is one of the earliest Firefox add-ons—in fact, it’s the 271st Firefox add-on ever created (currently there are over 18,000 add-ons available on AMO ).

It also accessed the browser content DOM directly in order to analyze DOM colors etc. There were two major reasons. The first reason was Firefox moving from single process to Electrolysis (e10s).blog.mozilla.orgWith add-ons no longer able to directly access web content, it would have required refactoring large portions of the ColorZilla code base.

There were two major reasons. There were two major reasons. The next step was to make all the places that hard-coded Chrome—in UI, URLs, etc—to be flexible and detect the current browser.blog.mozilla.orgWebExtensions, as both a high-level and multi-browser set of APIs, has some limitations. One example that affected ColorZilla is that the main add-on button allows only one action.