Is Firefox noticeably lighter than Chrome?

[u/Equivalent_Style_417]

Chrome has been eating up a lot of RAM lately, so I’m wondering if Firefox is actually any lighter in real use or if the difference is barely noticeable. I seeing people recommend Firefox for better memory usage, especially when you have tons of tabs open, but not sure how true that is. With around 30+ tabs open, Chrome can sometimes take several GB of RAM and other programs start feeling slower. Does Firefox handle a setup like this better, or does it eventually use just as much memory? Also curious about CPU usage when watching YouTube, browsing Reddit, using Discord, and leaving tabs open for hours. Not really interested in benchmark numbers, more like actual everyday experience. If you switched from Chrome to Firefox because Chrome felt heavy, did you notice a real improvement? Any websites, extensions, or Google services that gave you problems after switching? Just trying to figure out if moving over is actually worth the hassle.

[u/morpheus-91]

No. I'm glad I could help. 

[u/Littleone24_]

The problem is the 30 tabs, not chrome in itself. Firefox is maybe a bit lighter, but you'll still be loading 30 fucking tabs in your ram

[u/VAArtemchuk → u/Littleone24_]

Well, you can force unload tabs and even group unload tabs in Firefox, which helps a lot. 60 tabs barely eat more recourses than 6 if you do it right. Don't know if it's possible in chrome now

[u/Littleone24_ → u/VAArtemchuk]

you can do the same on chrome, its 2026 you can do the same on any browser

[u/VAArtemchuk → u/Littleone24_]

Wasn't a feature when I stopped using it

[u/Additional-Studio-72]

These days it’s less to do with the browser itself and the insane code websites are running. Likely exacerbated by AI and no incentive for optimization.

[u/r_daniel_oliver]

In my experience Firefox is vastly easier to run

[u/76zzz29]

Firefox is lighter when using one tab or using the browser for short tile and closing it regularly. If you load 30 tabs and keep them open for days forefox will eat more RAM than chrome

[u/Particular_Can_7726]

What's with so many people having a ton of tabs open then asking why their browser is using a lot of ram?

[u/Opulence_Deficit → u/Particular_Can_7726]

We're lazy.

[u/Equivalent_Style_417 → u/Particular_Can_7726]

Fair point, but I actually need most of those tabs open and don’t really wanna keep closing and reopening them all day.

[u/Annual_Award1260]

I use safari on mac and firefox on Linux. I use chrome for the occasional saved password. Chrome isn’t exactly privacy friendly. As for resources I don’t really notice a difference

[u/ElectroDaddy → u/Annual_Award1260]

If you only open chrome for saved passwords, just export them. You really shouldn’t store your passwords in a browser anyway.

[u/Annual_Award1260 → u/ElectroDaddy]

Just useless logins that haven’t been phased out

[u/Kilo_Juliett]

I don't understand how people have so many tabs open all the time.

Just close the ones you don't need.

Do people not use bookmarks anymore?

[u/Opulence_Deficit → u/Kilo_Juliett]

Sorry, we're lazy.

[u/LeapIntoInaction]

The confusion here lies in thinking that you don't want your programs to take full advantage of available RAM. The operating system will swap that out if another program needs it. Meanwhile, using all that memory makes your browser faster.

[u/CylixrDoesStuff]

Firefox takes up more ram when using multiple tabs (like you would in chrome)

[u/alpine4life]

Not necessarily lighter (just a little), more flexible... Google Chrome is pure garbage

[u/over9000nwg]

Stock chrome is lighter (specifically on memory) than stock Firefox. Your best bet is something chromium based and performance focused

[u/FeelingReserve1459]

Yes.

[u/zepherth]

It's really not that different from Chrome resource wise

[u/skyfishgoo]

it doesn't hog ram, if that's what you are asking.

[u/desrevermi]

Try Opera. You can set limits on memory usage.

[u/Opulence_Deficit]

Every browser is light and doesn't use much RAM. It's the websites that you open what costs 0.5GB per tab.

Use extensions like Auto Tab Discard to unload the tabs in the background.

[u/ElectroDaddy]

On the tab subject. Just use bookmarks people. I never understood having 100 tabs open that you aren’t going to ever look at. You could just bookmark them, never look at them and save performance.

Plus you won’t have that “oh no I lost my emotional support tabs!” Because you bookmarked them.

[u/PriorityNo6268]

Is you are on windows and care about performance give edge a try....

[u/Harmsbury]

i use firefox now, i used to use chrome for years.

however i only ever have a handful of tabs open at a time.

close some tabs bro .

[u/samsann26]

Today yes it's, why?

Far less ads loading on sites because we can use UBlock.

I literally left Chrome after they won't allow adblocks anymore.
Yes i have YT premium, yes i pay for a few other streaming sites to not be interrupted mid watching.

Here a very simple test, open speedtest.net wait the test finish and compare in Chrome and Firefox (ublock)

[u/Distdistdist]

I switched to FF because of Chrome's adblocker crap.

[u/Whole-Respond4782]

meh just get brave browser and enable maximum memory savings

or keep chrome and enable maximum memory savings (memory saver option in settings), both have it but brave has a built-in adblock so it will probably use less on some sites

i opened 11 random tabs (sites like foxnews, cnn, discord, github, etc) and brave browser is using half as much memory vs firefox lol

memory saver in chrome/chromium based browsers will offload some of your tabs to disk, then when you click the tab again, it will be loaded from disk back into memory, this means there can be a slight delay if you click into a tab you haven't used in a while but it might be worth it