Page Purifier

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This extension will help you remove unwanted content from any website you want. Persistently.Very simple tool for removing unwanted content from the page you're on. Simply click on the extension's icon, toggle into removal mode, and select all the content that annoys you. Wanna get things back and remove your changes? There's also a button ready for that.

It does not work on any type of content -- specially one that is being generated through time -- but does do the job on a lot of them.

Good part of the deal: All your changes are there after you refresh the page.

It's also totally free and open source: https://github.com/Amtrix/chrome-page-purifier