What is the Reader Mode in Firefox and how can I use it?

@pietro 

Reader Mode in Firefox is a feature designed to improve the reading experience by removing unnecessary clutter and distractions from web pages. It removes ads, sidebars, and other elements and presents only the main content of the page, making it easier to focus on reading.

To use Reader Mode in Firefox, follow these steps:

1. Open Firefox browser on your computer.
2. Go to a webpage that you want to read.
3. Once the page loads, look for a book icon in the address bar. It appears if Reader Mode is available for that page.
4. Click on the book icon to activate Reader Mode.
5. The webpage will reload, and you'll see the content in a distraction-free, easy-to-read format.
6. You can adjust the appearance of the reader mode by clicking on the "Aa" icon located on the right side of the address bar. This allows you to change the font size, type, and background color to suit your preferences.
7. To exit Reader Mode, click on the "Exit Reader View" button that appears on the top right corner of the page or press the "Esc" key on your keyboard.

Note that not all webpages may have the Reader Mode available, as it depends on the page's content structure.