Step 1: Install Screencastify chrome extension. Link: https://chrome.google.com/webstore/detail/screencastify-screen-vide/mmeijimgabbpbgpdklnllpncmdofkcpn?hl=en
Step 2: Connect your google drive to the extension as these videos are heavy and need to be saved somewhere.
Step 3: Press the extension button, choose the Browser Tab option & start the screen recording. To see the tutorial how the extension works, see this 2 minute tutorial — https://www.youtube.com/watch?v=uuJ2lF9RkgE&feature=youtu.be
Step 4: Download the saved video from the Drive. The file extension will be .webm . We need to convert this to GIF now. Visit https://cloudconvert.com/webm-to-gif and upload this file & start the conversion. This step can take about a minute depending on how big the file is.
Step 5: Download & Use your GIF!
By Grambuddy. Do visit Grambuddy on chrome web store & see instagram like never before. Download the extension from here. https://chrome.google.com/webstore/detail/grambuddy-ig-analytics-to/geanmonfjnphmeighphheddlmdlcjkho?hl=en