This tool adds download capability to your Instagram. After installation, open an Instagram page or reload an existing page for the extension to add tags to all the loaded images. You can see all the available qualities on the top left side of each image. Click on the quality that you would like to download and wait for a few seconds. The image will be placed in your default browser download's directory.
This extension offers downloading images in 150, 240, 320, 480, 640, 750, and 1080 pixel qualities.
Note that this extension has none persistent background page which means it is not using any resources when there is no open Instagram page.