Owl is a light-weight Firefox add-on that gives webpages a dark background and dimmed colors.
Free • Open Source
What is Owl?
Owl transforms webpages with a comfortable dark theme on-the-fly, protecting your eyes from the glaring color schemes on most websites. Owl comes bundled with a ton of features. With Owl, you can:
- Transform webpages (or local markup files) to use a dark theme - Choose between two themes (Default and Classic) to suit your needs - Use different themes on a site-to-site basis - Selectively Disable Owl on specific websites - Always use dark theme on specific websites - Invert PDF files - Turn on Owl on Firefox startup