Yes, you can export your data pretty easily in settings.
Strange, could you please open an issue on GitHub if the problem persisted?
Glad you like it! Yes GitHub is the place the community requests new features/enhancements.
In simple terms, link rot is when the contents of a link you saved from the past is longer available.
Firefox sync does save the link url itself, but the actual content is susceptible to being taken down for any reason.
A tool like Linkwarden both saves the link url as well as the content itself, so you’ll have a copy even if the original content is lost. All while taking collaboration into account.
Hahaha, appreciate the support! :D