Site-Cleaner

A completely customizable "cleaner" for websites, to remove unwanted content on the page. It can be used to clean web pages of unwanted content such as ads, or it could be used by technical parents to limit what their children see based on similar filtering techniques. This is a generalization of the Viewpoint Cleaner we provided in the past, which did the same thing but only for viewpoint.ca.

See the default settings in the extension for examples. As a test, you can enable it on www.cnn.com or www.popularmechanics.com and compare the page with it enabled or disabled.

Note: When disabling it for a site, you may need to refresh the page to see it unfiltered again.

Site-Cleaner supports five types of patterns for blocking unwanted content. The first four hide HTML elements by setting `display: none !important` via CSS injection:
1. CSS Classes (starts with `.`)
2. CSS IDs (starts with `#`)
3. Data Attributes (contains `=`)
4. HTML Tag Names (simple names matching none of the other patterns)

It also support actually blocking some URLs entirely, using Chrome's declarativeNetRequest API:
5. URL Patterns (contains `/`)

Note: This extension is a technical tool intended for use by intermediate to advanced users.