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New member
Status: Exploring more

Although I prefer to use the firefox browser, unfortunately it drains the battery on my laptop. A battery saving version would be nice in the future.

New member

Anything that goes towards power reduction will be helpful - that includes notifying the user of background (and possibly even foreground) tabs that consume a lot of power (or CPU cycles) when on battery power. Automagically hibernating background tabs (maybe with a whitelist for tabs you expect notifications from) would also be an excellent start. Rounding this out with a way to throttle foreground tabs' timers etc. and disable animations until they're clicked on while on battery would pretty much complete my entire wish list...

Making moves

Very nice suggestion 😉

It could be added as a battery saving feature that extends battery life by between 20~25% without sacrificing performance. When browsing on a laptop without being able to connect it to power, it is a great advantage to be able to save battery, especially when you need the device for work and study.

New member

I agree with most here. I think a lite version of Firefox or some sort of mode toggle to be a bit more power efficient would be a great addition for us laptop users.

New member

battery saver for windows and linux

make a battery saver and memory saver feature for firefox to make it further efficient and to recommend to other people with laptops because it battery life is very much important to all laptop users who use their laptops unplugged


Status changed to: New idea
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(Note: similar ideas have been merged into this thread)

New member

I switch browsers when I need to save on power. So having this feature natively on the browser would improve this experience.

New member

Has anything changed since 2023 ? Battery life seems indeed very important for browser nowadays.

Firefox especially will have a good strategy to focus on this with a well written option. Power saving seems indeed a really good idea.

Strollin' around

Asking some friends of mine about why they don't use Firefox and that's because other browsers has resources cap options that could limit memory and cpu usage. Firefox could add this and then simply enable a preconfigured option for battery safe mode.

This should be the key part for being in scene with other browsers. Having this + MV2 support will be overkill for the competece

New member


In most cases, when a Firefox instance uses too much resources, the culprit turn out to be one tab (or a few tabs). Firefox contains a built-in tool to see how much CPU and memory is used by each process, and which tabs are loaded in each of these processes. From the menubar: Tools -> Browser Tools -> Task Manager. Or you can also type about:processes in the address bar.

Here's a link to a presentation I gave at FOSDEM explaining the work that is happening to understand how Firefox uses power, and reduce its power use.

New member

I did some testing myself, having the same workflow in Firefox and Chrome on my laptop. The difference of battery consumption was: Firefox - 24%/h; Chrome 14%/h. Hardware acceleration, background update setting and the extensions are the same. I did this test when I was clearly noticed that my battery drained faster for some reason. I also checked the battery state and it was not changed.

Obviously, Chromium-based browsers are more energy efficient, but I believe it's possible to improve the Firefox power consumption as well.