When You try to install extension in Google Chrome and get error Could not create directory for unzipping
Solution
Download Extension on desktop or a Another folder
(- Not --- for Download Manually Extension --- right click on Install Option and Select SAVE LINK AS.... )
Rename extension "******.crx" to "******.zip"
Right Click on *****.ZIP
and Choose extract Here and Now type in Chroma Address Bar "chrome://extensions/" and press ENTER
Now Click on Developer Mode and now Click on Load Unpacked Extension
Browse to the directory containing the extracted extension files & Click on “OK”.
Now you are Success
Deepak Kumar Verma