Here you can learn how to install the fontQA framework.
Before you install fontQA, verify that your python system works fine with FontLab. Refer to the FontLab documentation if you have problems setting up python for FontLab.
The fontQA framework comes without any installation programme, so you have to put the files in the right place manually. The image below shows a part of FontLab's folder structure.
You will find the same folder structure when you extract the downloaded archive. You can simply move the extracted files into the subfolders of your FontLab programme folder.
Now you can start FontLab and use fontQA.