Without this add-on, Firefox has become an unwieldy, slowly dying wind bag. It will suck in 6GB of memory in a handful of hours, with heavy browser work. That's because of the tons of scripts and media being run on your computer. Even NoScript is not a good alternative, because it's very cumbersome - even if you use it for safety. Just be sure for ATD, that you spend a few minutes in OPTIONS (Tools / Plugins / ATD - Options) because you'll be consuming A LOT of bandwidth needlessly RELOADING stuff you're in the middle of. I am currently using 1,800 seconds before discard (30 min.), instead of the default 600 (10 minutes.)

Does what it says

This is nice, and works very well. I'd like for an option to temporarily disable auto discarding, though, since there are a lot of times when I work with a lot of tabs and I'd like to have all of them available. Thanks.

Auto Discard would be great too! And ofc s/discard/suspend/.

Even better than it's predecessor!!!

Para ordenadores con poca memoria ram es ideal. Tambien para aquellos que mantienen abiertas múltiples pestañas simultáneamente. Los ajustes son variados y adecuados.

The exception with "re" seems not working.

Powerful! So glad to regain control of my CPU from poorly written web pages running in the background!

This is great!

I consider this to be a mandatory to use addon.
If you have lots of tabs, Firefox does not have any automatic way of preventing them from being loaded forever, eating RAM in the background, and this is where this addon helps greatly.

Great addon; useful and efficient.

To the developer:
Could you make the favicons dimmer when a tab is discarded? sometimes I forget which tabs are unloaded and end up loading them by mistake.

Is it possible to automatically discard non-active tabs when a certain amount of RAM is being used?

Thanks for the addon. It's a lifesaver.

Greatly reduce my Firefox memory usage, and prevent tabs automatically reloading when opening the browser.

Perfect, other than it doesn't keep the tabs favicon.

Works well but when I reopen firefox I lose pinned pages and i have crash when play videos in full screen, some lag and finally when I come out of full screen crash the tab of firefox

Switched to this from Tab Suspender. Needed something that would work with the Tree Tab (Kroppy) session export feature. This extension does the job perfectly.

I really like this add on, but I've noticed recently that I am losing the URLs of some tabs that have been discarded. I suspect the URLs that are disappearing are tabs that I have not yet switched to but I havent tested this yet.