[shpeedy]

Previously, Firefox was fine on computer with 2GB of memory and hundreds of tabs. Now, 8GB is not enough.

[sfink]

Have you checked how Chrome does with 8GB now?

Sadly, the sites out there have changed far more than any of the browsers have, and not for the better. They load a ton of crap that does not contribute to the value delivered to the user, but instead contribute value to the site owner and the dozen layers of intermediaries in between user and site owner.