Basically, a story downloader operates by identifying the web page or platform where the story is hosted. Then, it employs specific algorithms and protocols to download the text and sometimes even associated media like images. Some downloaders might also handle formatting and organizing the downloaded content for better readability.
Mangadex might have uncensored manga. But it's important to note that the presence of uncensored content can change over time and is subject to various factors such as publisher restrictions and site regulations.
It varies. Sometimes you can find uncensored manga on Mangadex, but it's not a guarantee for all series. It really depends on the uploaders and the availability of uncensored versions.
Downloading manga from Mangadex is not a legal or ethical thing to do. You should support the creators by purchasing or accessing manga through legal means.
It usually involves finding an appropriate extension or plugin for Chrome. Then, you might need to navigate to a manga website and use the download function provided by the extension.