add new feature to load (import) urls from saved plain *.txt files or *.json files

[WebSkater]

Hi,
I'm using your addon from the beginning, and it is EXTREMLY helpful to me to save a complete history of my work by exporting the urls with the "save as" option. It would be a great enhancement to have a new option to open saved urls directly from the files that were created by the "save as" option - and not to have to open the "urls-list-xxxxx.txt", copy the content to the clipboard, paste it to the addon and to then open it. This should work for any plain *.txt files containing the urls. May be there could be an option to do the "save as" (export) and the "open from" (import) with plain *.txt files, *.json files or *.jsonlz4 files (to enhance security of the exported files a little bit).
As I save a few url-lists every day, containg 1-3 hundred urls somrtimes, you may understand perhaps how useful and great such a feature to open urls directly from saved files would be. By the way: with such an option there would be no need for me (and others) for a "session manager addon".
Please consider seriously if such a new option can be implemented.
Kind regards,
WebSkater