It removes unwanted clutter albums that are automatically generated by Google.
The albums in this picture named Places, Things, Videos, Collages, Animations and Movies are automatically generated. I don't use them and I therefor don't want to see them.
Those albums are now hidden. They still exist but they are not shown while this extension is active.
Download this repository.
Either by using git clone https://github.com/realestninja/hidePrepopulatedGPAlbums.git
or by downloading the zip file in your browser and then unpacking the zip.
After having this folder on your local computer, load the extension in Chrome. To do that, open the extensions tab in Chrome, click "load unpacked" and select the downloaded folder.