Block Fossils Out is a browser extension for Chrome and Firefox that helps you block the online presence of fossil fuel companies and their financial supporters. The app can be used to block websites and pages of various companies that are known for their carbon-intensive business practices, and it is currently the most effective way to make a stand against climate change.

Block Fossils Out is a simple and effective way to block out the online presence of fossil fuel companies, and it does so by simply blocking their websites or pages. It works for websites that use the HTML code, and it is compatible with most modern browsers.

The app will only display a warning and will not collect personal information or browsing data. It is a simple and effective way to make a stand against climate change.