Dear user, if you need to download the source code, please right-click on the "Add to Firefox" button and then click on "Save Link As" item in the context-menu. Once the package is downloaded to your PC, change the suffix ".xpi" to ".zip" or ".rar", and then unzip the package to a desired folder. I will also upload the package (source-code) to GitHub soon.

Please note: this addon does NOT report and track your browsing history to any 3rd party at all. You can review the addon's source code if you want.