Github Modernizer, developed by Maciej Pieńkowski Consulting, is a free Chrome add-on that aims to improve the user experience of Github. This add-on offers several features that enhance navigation, visibility, and overall usability on the platform.

First and foremost, Github Modernizer allows users to easily navigate between failures on Github Actions logs. It provides a default search query and keyboard shortcuts, making it quick and efficient to locate specific failures. Additionally, this add-on ensures that failed Github Actions are displayed at the top of the page, eliminating the need to scroll down to find them.

Another useful feature of Github Modernizer is the ability to have the currently reviewed file highlighted in the file tree. This helps users easily identify the file they are currently working on, improving productivity and reducing confusion.

To further enhance visibility, the add-on also provides tooltips on truncated directory and file names in the tree. This ensures that users can always see the full path, even if the names are cut off due to limited space.

Overall, Github Modernizer offers valuable enhancements to Github's user experience. It streamlines navigation, improves visibility, and provides convenient shortcuts. Users can also request additional features through the plugin options, allowing for further customization and improvement.