Link to the Archiveror plugin page.

Archive webpages on archive.is, archive.org and more or on your own computer in MHTML format. Automatically archive your bookmarks. Archiveror will help you archive webpages by submitting them to archive.is, archive.org, webcitation.org or by saving a local copy in MHTML format. It will automatically archive every page you bookmark so you will always be able to revisit it on a later time as you first found it, whether or not the content has changed or even disappeared. If you revisit an already archived bookmark, Archiveror's icon will change and clicking on it will open the page on the archive. Previously bookmarked pages will be archived after you visit them again with Archiveror enabled. Bookmark archiving can be disabled at the options.

Set the standard archiving mode at the options (right click icon). There you can pick your preferred online archiving service, or choose to archive locally. In local archiving mode your bookmarks will be saved in your Downloads directory following your bookmark structure. If you move your bookmarks around, archiveror will mirror your changes and likewise move your local archives. For this to work you need to check "Allow access to file URLs" at the extensions page. Go to your extensions and enable it: https://i.imgur.com/ahrfe3M.png

For some Chrome will block downloading of MHTML files, uncheck "Enable phishing and malware protection" at the (advanced) settings: https://i.imgur.com/oM75fiy.png

You can always archive the current page by clicking the icon or by right-clicking the page and choosing an archive in the context menu. The keyboard shortcut to archive online is Alt+Shift+Y and to save locally in MHTML format is Control+Shift+S.

For an explanation of the required permissions, see https://git.io/vYr6s . Archiveror is free/libre and open-source software, check the source at: https://github.com/rahiel/archiveror .

Happy archiving!