Context Highlight is a web application that helps web developers quickly identify and fix layout and design issues with their websites. It uses a powerful set of algorithms and rules to analyze a web page and highlight any potential problems in the layout and design. By simply entering the web page URL, Context Highlight can provide an in-depth analysis of the page, highlighting areas like font sizes, spacing, and colors. Additionally, it provides helpful suggestions for improving the page's design, as well as code snippets to fix any identified issues. Context Highlight is an invaluable tool for web developers, allowing them to quickly identify and remediate any design issues with their websites.
Discontinued The add-on will no longer receive updates and will stop working next November with Firefox 57, when XUL-based add-ons will be deprecated in favor of the WebExtensions API. See http://fasezero.com/. The extension still works in XUL-based Firefox forks such as https://alternativeapp.info/software/waterfox/.