Firefox is used very widely by many users, many time we visit websites but forget to bookmark them for future, so you can only get that website through history of your browser.
History Export is a nice add-on for Mozilla Firefox users which allows you to export your browsing history in the form of, Plain Text, HTML, XML and JSON so that you can retrieve your browsing data easily.
This add-on will allow you to save history automatically or you can do it manually also, as it can export data in various formats so its easy for you to read it.
You can select auto saving option, if you do so you can specify any folder of your choice where you want to export data.
If you go for HTML version then you can specify formatting options too like include URL, Title etc.