App for Instagram™ is the easiest way to open and check your Instagram page from your desktop machine (PC, MAC or Linux). Clicking on the toolbar button, renders Instagram in a standalone UI.
App for Instagram™ is designed to operate similar to Chrome Apps. In other words, it opens in a simple and stand-alone popup window (as opposed to the toolbar-panel or sidebar), and once closed, completely clears-off and won't have any further background activities. Having this behavior, it is considered a very lite addon and does not add any additional burden to your browser.
Important Note: App for Instagram™ does NOT belong or related to the official Instagram application/website in any ways. It is an unofficial app that is developed and maintained independently. The official Instagram software is only released for smart phones and the web. This unofficial app (browser addon) is a wrapper to the original Instagram web application and tries to make it usable as a browser plug-in.
Note 1: to start working with Instagram, you can read this help page in Instagram website: https://help.instagram.com/
Note 2: in order to report bugs, please fill the bug report form in the addon's homepage (http://mybrowseraddon.com/instagram-app.html).