MemZen: Deep Memory Optimizer

About

MemZen is a memory optimizer for people who never close a tab.
If your browser routinely has fifty, eighty, or a hundred tabs open — research threads, documentation, dashboards you'll need again in ten minutes — MemZen shows you exactly which of those tabs is actually costing you memory and CPU, and gives you calm, deliberate ways to get it back.

What it does
MemZen runs a live dashboard that measures each open tab's memory usage and main-thread activity, grouped by site, so you can see at a glance which pages are the heaviest instead of guessing. Offscreen iframes and images are lazy-loaded automatically, so pages you're actively reading use less memory in the first place, rather than only being cleaned up after the fact. Tabs left idle past a threshold you choose are quietly suspended in the background, skipping anything pinned or playing audio, so you don't lose a page you're still using. When you spot a tab that's using too much, you can suspend or close every tab from that site directly from the dashboard, in one action.

Why install it
Most tab-management extensions do one thing: freeze whatever isn't in front of you and hope for the best. That works fine until you need one of those tabs back, or until the page you're currently reading turns out to be the one dragging your browser down. MemZen is built around a different idea — that memory optimization should be visible and deliberate. You see the real numbers behind each site, decide what's worth keeping open, and reclaim the rest without losing your place. It's aimed at people whose work depends on keeping a lot of tabs open at once: developers cross-referencing documentation, researchers comparing sources, anyone who treats their tab bar as a second desktop.

MemZen runs entirely on your device. It doesn't create an account, sync anything to a server, or track your browsing — the dashboard is just a window onto data your own browser already has.
Permissions, explained "tabs" lets MemZen list your open tabs and suspend or close them on your command. "storage" saves your settings and the live stats shown on the dashboard. "alarms" runs the periodic check for idle tabs in the background. The all-sites host permission lets the lazy-loading and memory-reading script run on whatever page you're visiting, rather than a fixed list of sites.