How many tabs do you have open?
And remember.. it's not a race!
You're viewing a single thread.
Seldom more than 5 or 6 before using Firefox to 'close tabs to right'. It keeps a short history of recently visited URLs in the toolbar, and a deeper, searchable 'library' of visited sites going way back. Longer term interests I save to Bookmarks.
That sounds like a good process.