text: is there any software that blocks certain part of a website.? not the whole website on certain parts of website. firefox has extensions that let you block out ads or images. but if you're not trying to block out ads, firefox also has this extension called stylish that lets you customize a website and you can use it to remove some things.  you have to know css though.  but they do already have a site called userstyles.org for the stylish extension that has many premade styles.