While currently shift+link click, opens link in new window, and ctrl+link click, opens link in new tab. Alt+link click (for example), could open link in split view.
There is setting to "Clear cookies and site data every time you close Firefox".
Suggesting little more aggressive option, "Clear cookies and site data every time you close last window/tab for a site". Would follow browsing data exceptions.
Underlying idea is good, but this should be done local only. Personally I would not wan't to some LLM look my bookmarks that might end up some database somewhere.
