Bibliography (3):

1. https://addons.mozilla.org/en-US/firefox/addon/single-file/

2. https://chrome.google.com/webstore/detail/singlefile/mpiodijhokgodhhofbcjdecpffjipkle

3. https://microsoftedge.microsoft.com/addons/detail/efnbkdcfmcmnhlkaijjjmhjjgladedno