Step 1 :Download the Internet Download Manager (IDM) in your computer. Then, open thebrowser .
Step 2 :On the browser Go to settings and then click on extensions (top left side in chrome).
Step 3 :On the browser open the location (folder) where IDM is installed. Generally, it is in C:\Program Files (x86)\Internet Download Manager.
Step 4 :Find the file “crx or IDMGCExt“.
Step 5 :Drag this file to your chrome browser and drop to install the IDM extension.