Win11: I can only use 75% of my 32Gb memory, on Win10 I could use all 100% of it.

Marie SWE · Aug 9, 2026

MisterEd said:
Like @Ghot said in a previous post. Instead of keeping all those tabs open why don't you have bookmarks for them and only open a tab when you really need to?

I have many hundreds of bookmarks and only open the tabs as needed. Note I organize the bookmarks in folders. All the folders are immediately accessible on the Bookmark Toolbar.

So i should open hundreds of tabs every time i sit down at that computer and look at one topic and then close them and then open a hundred new ones on the next topic and then continue on the next and next.. and then do that 10-20 times a day.
Its easier and less time consuming to just keep them open during the active research.

I dont know how many bookmarks i have as Firefox cant count them.. but its probibly thousands of them.. or even more.
I have first a lot of main category bookmark folders.. those have sub category folders and then sub folders on them.
It's so many so i cant find all bookmarks without the search function.. so I'm really glad Firefox has a good Bookmark manager.

TraderGary · Aug 9, 2026

MisterEd said:
Like @Ghot said in a previous post. Instead of keeping all those tabs open why don't you have bookmarks for them and only open a tab when you really need to?

I have many hundreds of bookmarks and only open the tabs as needed. Note I organize the bookmarks in folders. All the folders are immediately accessible on the Bookmark Toolbar.

That's what I do too. I have rows of folders with hundreds of bookmarks that I've built up and modified to my needs over many years.

XxXxX · Aug 10, 2026

dimaxxxer said:
Hi and thank you for an answer! Here is my memory info.
I have one 32gb stick in 1st slot. Do you think that could make a difference? I thought that it either works or not and it has nothing to do with how Windows is managing memory. Thanks!

i beleive the problem you are facing with just one (1) stick of DDR4 memory is the system can not use the full potential of double data rate and has to keep paging out to swap file. thus creating a bottle neck for your system which you are seeing with its full use of available ram.

the simplest solution would be to get another stick of DDR4 ram at the same speed (ie. 3200) and install that extra ram into your system.
it doesn't have to be another 32GB stick it could be 16GB or even 8GB. this will allow the system to then use that amount of ram at double data rate.

but that is entirely up to you
best of luck Steve ..

Bree · Aug 10, 2026

Marie SWE said:
So i should open hundreds of tabs every time i sit down at that computer and look at one topic and then close them and then open a hundred new ones on the next topic and then continue on the next and next.. and then do that 10-20 times a day.
Its easier and less time consuming to just keep them open during the active research.

Sounds like a good case for using Tab Groups.

Mozilla said:
the feature is built in for all users, starting with Firefox 141 on desktop.

https://support.mozilla.org/en-US/kb/tab-groups

Marie SWE · Aug 10, 2026

Bree said:
Sounds like a good case for using Tab Groups.

https://support.mozilla.org/en-US/kb/tab-groups

Yeah.. But I'm using the ESR version.. i dont think its on the latest version yet.. I do need to update my browser as it lags behind updates.. But i will do that on next planed reboot when i do all updates.

Bree · Aug 10, 2026

Marie SWE said:
Yeah.. But I'm using the ESR version.. i dont think its on the latest version yet..

Tab Groups came in with 141, your current ESR is probably 140. The next ESR is 153, released three weeks ago.

Firefox 153 Extended Support Release (ESR) includes all of the enhancements since Firefox 140, along with many new features to make your enterprise deployments easier and even more flexible.

https://www.firefox.com/en-US/firefox/153.0esr/releasenotes/

Marie SWE · Aug 10, 2026

Bree said:
Tab Groups came in with 141, your current ESR is probably 140. The next ESR is 153, released three weeks ago.

https://www.firefox.com/en-US/firefox/153.0esr/releasenotes/

nope.. My current is 128.14 last time i had to reboot 6 months ago.. i only installed a few system security updates, but as FF didn't have any "Linux dangerous" CVE's i skipped that one as i dont like the .0 or .1 releases.. i like from .2 and newer so i know they got the bugs on new features.

Edit: Now i remember when i looked up 140 and why i hold off the 140 version.. they introduced AI chatbot and it was then i started to evaluate Waterfox as a replacement..... AI do not belong in a browser... period!!!....
its a just security disaster just waiting to happen with all AI prompt injection you can do..

Alejandro85 · Aug 10, 2026

XxXxX said:
i beleive the problem you are facing with just one (1) stick of DDR4 memory is the system can not use the full potential of double data rate and has to keep paging out to swap file. thus creating a bottle neck for your system which you are seeing with its full use of available ram.

That would at worst make the RAM slower, but not unusable, nor that would affect pagefile usage.

maur0 · Monday at 5:56 AM

reg add "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management" /v PoolUsageMaximum /t REG_DWORD /d 97 /f

to use 97% ram usage When it gets past that point, he'll transfer the case to SWAT.

Without this standard, usage is 80% to 75%, which means your case is wasting 25% of the RAM.

colinp · Monday at 8:06 AM

Ghot said:
100 tabs???
Don't you use bookmarks?

Even when I'm comparing a bunch of items on Amazon and other stores... I rarely get more than 20-25 tabs open.

View attachment 178466 View attachment 178468

I don't use System managed page file.

View attachment 178469

I only have 16GB of RAM and I never get low memory.

In Task Manager on the "Processes" tab, if you click at the top of the Memory column, it will sort with the things using the most memory, at the top...

View attachment 178470

Sheesh, I start to hyperventilate if I have more than 6 tabs open (a sad leftover from my dialup days)

HeavyHemi · Monday at 11:40 AM

colinp said:
Sheesh, I start to hyperventilate if I have more than 6 tabs open (a sad leftover from my dialup days)

I'm the same here. I rarely have more than 5 or 6 tabs open and horror of horrors, completely close down a browser if I am not actively browsing.

Marie SWE · Monday at 11:48 AM

All of you that never use much memory should be very glad because of today's RAM prices.

HeavyHemi · Monday at 11:51 AM

Marie SWE said:
All of you that never use much memory should be very glad because of today's RAM prices.

I close down other apps because programs I do use, Flight simulators, for example, use a lot of physical memory.

Marie SWE · Monday at 11:59 AM

HeavyHemi said:
I close down other apps because programs I do use, Flight simulators, for example, use a lot of physical memory.

you have it easy.. I run VM's and docker containers, so i cant just shut them down

maur0 · Monday at 12:23 PM

about firefox im using this app to low memory usage

cheaterslick · Monday at 12:29 PM

I never have to worry about memory in Firefox. Not when I use Auto Tab Discard all the time.

KevTech · Monday at 12:35 PM

maur0 said:
about firefox im using this app to low memory usage

Firemin uses Windows API function EmptyWorkingSet

All that program does is flush memory the browser is using out of RAM and into the page file.

Page file is slower than RAM so you are actually slowing things down not speeding them up.

kelper · Monday at 12:51 PM

The answer was posted in thread #5