Throw bartab heavy on to firefox - https://addons.mozilla.org/en-US/firefox/addon/bartab-heavy/?src=search https://addons.mozilla.org/en-US/firefox/addon/bartab

Throw bartab heavy on to firefox - https://addons.mozilla.org/en-US/firefox/addon/bartab-heavy/?src=search https://addons.mozilla.org/en-US/firefox/addon/bartab-heavy/... Now you can have HUNDREDS of tabs (in firefox's nice tab groups, of course) and they'll only stay open / in-memory for a configurable amount of time after you stop using them. Keeps memory utilization tight. I'm currently south of 500MB utilization with hundreds of tabs open and lots of extensions: Disconnect Search, DownThemAll, FoxyProxy, Greasemonkey, HTTPS Everywhere, Imagus, Stylish and uBlock