It appears that the AI-powered tab grouping of Firefox keeps this extension from being effective.
You need to turn off 'Use AI to suggest tabs and a name for tab groups' in Settings > General.

The extension discards tabs more than Tab Unloading, a function of Firefox and is more flexible.
I still needs it.

Edit: Options work perfectly now, it was problem on my end.

Useful for my potatoe, but the options do not take effect for me for some reason which would be super helpful otherwise. Thank you. Shall revise the review when I can get that working.

Good, but firefox now has built-in tab discard/unload feature, so in fact you don't need this anymore.

Really helps conserve RAM and my aging device. Thanks! God Bless

Demasiado buena, funciona perfecto.

Works like it should.
The settings are a bit complicated.
I could have the option to have more than one set of criteria, before closing tabs. Eg. closing tabs after 20 min, when having more than 10 open, but also closing tabs after 10 min, when having more than 25 open.

It works very well and what I like most is that the add-on behavior is very customizable.

its like marvellous suspender for chromium browsers but works better in every single way (for me). I had a lot of time consuming issues with various suspender versions after the official one died and swapped to firefox a few months ago, this one JUST WORKS! big fan.

I can now play while having 70+ tabs, very simple, nice, useful, thanks!!!

works fine for the most part, but as of a couple days ago youtube tabs won't automatically discard any more when first opened, which is what I mainly use this for. Other than that I've not had any other real problems with this.

Edit: I originally gave this a three star review for the above issue, but it turns out Auto Tab Discard is interacting with UBlock Origin in a weird way and it's only when UBlock is active that I have this problem. Not really much I can do about it, but also not really the fault of this addon, so I bumped the rating up.

Great idea! Unfortunately, it doesn't function or work properly as of June 6 2025

don't work

Az újabb Firefox nem kezeli jól a memóriát és elképesztően sokat zabál (belőle) így aki úgy használja amiben ez a böngésző eredetileg a legjobb volt, tehát sok ablak = lap = fül = tab akkor ez neki való mert az inaktívak nem használnak memóriát és így végre újra a régi az élmény.