i don't really want to keep pressure on issue but try to run Chrome as administrator an it will ask you if you want the restore the tabs from the previous session
『Meh, I'm using Firefox, and using addon I do restore all tabs but that still doesn't help at all since at that pic holder pages add as I scroll down mouse and nothing changes at the site's address meaning I do get back on that site but only back to page 1 and not scrolled down to page40 or so...』
Well you could go to history search for this starting page view the time you visited the page and go forward in time to see which pages you visited after this page in you might find a clue
Sorry if you already tried this and for posting here
I could be wrong but I think that history is not always immediately updated and if you have opened some website and immediatly after that firefox crashes the last few pages may not be saved in history.
I suspect that this is done for performance reasons and only on specifics intervals is the data from memory saved to hdd since writting to hdd is very slow.
I experienced myself that when browser crashed there was not the last 3 tabs i have opened in history.
Well you can also look backward on time, you know which websites were opened after starting browser again so from there you look back but as i said it doesn't necesary means that last websites are there.