What is the first thing you look for when it is bottleneck situation for you to decide on closing of tabs(browser, OS, Application)?

This is related to multi-tab feature. I am looking for answers to gather what usually people prefer from UX point of view

What is the first thing you look for when it is bottleneck situation for you to decide on closing of tabs:

-Age of the browser — How old is that, opened 2 days ago?

-Revisit the content of the tab — To make sure you are not closing anything you would be needing soon?After that, you either close it or bookmark it for later(may be).

-The sequence — Since many links open the new tab next to its previous one, wondering if same sequence (as displayed in the browser)matters.

Please feel free to add parameters that I am not factoring in.