Tab Suspender for Safari Alternatives

Auto Tab Discard a lightweight extension that uses the native method (tabs.discard) to unload or suspend browser tabs to significantly reduce the memory footprint of your browser when many tabs are opened.

Firemin is a small utility to reduce the amount of memory Firefox or other browsers use. Although Firefox memory usage improved a little over the last few years, it still uses a lot of memory; a little more than we feel comfortable with.

An essential add-on for power users that have many tabs open. Curb your resource usage by unloading tabs that you haven't visited for a while. An unloaded tab is restored back to its original state when you need it again.

Unload / suspend / hibernate idle tabs to reduce memory and cpu usage.

Firefox extension to suspend tab processes.

This Chrome/Iron extension is inspired by the excellent Firefox extension - BarTab, although it's much less sophisticated and powerful.