Search the content of recently visited pages in Firefox

There was a need to find a page I've previously visited and remember the content of the page, i.e. key words, but I can't remember the title. Thus, the search history in Firefox does not give any result. Making a small research found that some browsers have similar functionality, it at least Safari (under Mac it certainly works, in Windows I do not know), Opera and Google Chrome. Description this function is implemented in Opera

Quote from Opera's help:
During your browsing, Opera creates the historical database in which to search and which stores all text content of all visited web pages. To access this database, type a keyword in the address field, or use the "Find" box in the History panel. Some information is available from the page opera:historysearch.
Is there a possibility to implement a similar functionality in Firefox? Among the additions was not found suitable. But maybe bad looking?
October 8th 19 at 01:15
3 answers
October 8th 19 at 01:17
Firefox does not store the text contents.
The best thing is to search the history of this Recall Monkey.
Studied the description of this add-on, it apparently significantly improves the flexibility of search history, yet the search only by title and URL, not for content of pages visited. Ie is probably better than the standard search, but not what I'm looking for. - Khalil88 commented on October 8th 19 at 01:20
But what about the cache? - trey_Gerhold commented on October 8th 19 at 01:23
October 8th 19 at 01:19
Maybe I'm weird, but the first thing that comes to mind:
1) get a SQLite database history
2) programmatically go through all the addresses and get the html
3) a parser (e.g. htmlagilitypack) to pull out the text
4) find what you need
5) rejoice
If I had the need once to find something very important, then this option of course would come up, but I'm interested in the possibility of regular, everyday use. Given that Firefox's rich extension, I was hoping that I just haven't found the right supplements, not all supplements are posted on the official website. - Khalil88 commented on October 8th 19 at 01:22
October 8th 19 at 01:21
Try to look at the cache files directly, or something like this Supplement. But if the cache is disabled or very small — it won't help.

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