#Auto-save

gildas-lormeau

SingleFile

Web Extension for saving a faithful copy of a complete web page in a single HTML file

Own-Data-Privateer

hoardy-web

Passively capture, archive, and hoard your web browsing history, including the contents of the pages you visit, for later offline viewing, replay, mirroring, data scraping, and/or indexing. Your own personal private Wayback Machine that can also archive HTTP POST requests and responses, as well as most other HTTP-level data.