If you would like to disable Mr. E tool then it's a simple click away process.
Go to Extensions from your chrome browser by clicking on 3 dots on top right corner.
Once you are on the page, find Mr. E tool and click on toggle switch which will disable the extension.
If you would like to use the tool again, simply enable it back by clicking on toggle button.
Do not click on remove as that will completely uninstall or remove the tool from your browser.