My search history has disappeared from Firefox.

I am using Firefox 150.0 in Linux Mint Cinnamon on a Byte. I always turn off my computer when not in use. Recently I noticed that my search history has become very truncated. Specifically, if I use an in-site search function, my searches no longer appear in my browser history; I only see the address for the site's main page. If I want to resume a search after turning off the Byte, I have to navigate to the site main page and re-enter the search parameters, then try to remember how far down in the search results I got the last time. I realize that I can bookmark searches. But the stuff I am doing may require returning to a parameter-heavy search that I did a month ago and didn't think I would need again. Is there some way to adjust this new, uninformative default History dialog box and see my entire browsing history again?