I mean... think I don't have hundreds open at a time with all my memes?

Browsers have a restore previous session function. https://support.mozilla.org/en-US/kb/how-do-i-restore-my-tabs-last-time

If you quit normally and press ctrl + shift + T upon startup, the session is automatically restored.

Ctrl + shift + T is also useful to bring back tabs you accidentally closed. It brings them back in the order that you closed them (you can use the shortcut multiple times)