When we click the "Firefox View" button to view the "Firefox View" special page, the previously visited ordinary tabs will be placed in the background, just like other background tabs. If you want to quickly return to the previous normal tab page you visited, you need to search through a large number of tabs.
Here, I would like the "Firefox View" button to be capable of activating/deactivating the mode. That is, clicking once will display "Firefox View", and clicking again will close (or put in the background, depending on the original implementation logic) "Firefox View" and instead display the previous page. You can consider the "Firefox View" page as a special page that is different from ordinary tabs, or you can view it as a special interface superimposed on the current interface (similar to a floating window).
No matter how it is achieved, I sincerely hope that a simple click can resume the previous browsing experience.