This is one of the absolute greatest reasons to support opening most everything in a new tab (as long as you don't end up like my mom who at one point had over 100 tabs on her phone). Doesn't matter if it's a link from the same website, from a search engine, or whatever else there is. New tab.
Then on android Firefox you accidentally hit the back button and it closes the tab and you can't go forward and you already navigatedc away from the originating page on the other tab forcing you to open your history and try to figure out where the hell it is.
Edit 2: From the 3 dots menu INSIDE the tabs view you can access a list of recently closed tabs, not nearly as fast as a 3 key combo, but maybe better than looking for the tab in the history.
Also apparently there's an extension that may help.