I have two Firefox tabs open on my browser. Task manager shows 35 tabs using 897 MB of memory. How do I make this stop? And why are so many tabs running? I have clear… (baca lebih lanjut)
I have two Firefox tabs open on my browser. Task manager shows 35 tabs using 897 MB of memory. How do I make this stop? And why are so many tabs running? I have cleared cache, cookies, etc.
Is this a bug or config problem? Occasionally, FF (Linux desktop) starts using a lot of memory. I kill tabs (sometimes it is OK to kill YouTube or X, sometimes not) Eve… (baca lebih lanjut)
Is this a bug or config problem?
Occasionally, FF (Linux desktop) starts using a lot of memory. I kill tabs (sometimes it is OK to kill YouTube or X, sometimes not)
Eventually it starts impacting the system using so much memory. I terminate the FF instance. Often. More often than not. There is a separate task still running and I get the "Firefox is still running" when I try to restart. I then kill the remaining FF task via the OS or the process monitor. Then FF restarts.
Is this an issue with addons (I am running very few - uBlock Orign, and Privacy Badger and Cookie AutoDelete. Are the only ones active most of the time) Or is it an actual bug with garbage collection, and tasks getting away? Or is it an OS issue?
Firefox is running too many processes in the background. You have eliminated access to the user settings to be able to reduce that number. It is using so much memory (two… (baca lebih lanjut)
Firefox is running too many processes in the background. You have eliminated access to the user settings to be able to reduce that number. It is using so much memory (two tabs, one window, 1400 MB) it is becoming a nuisance rather than an asset. How do I reduce the number of processes. Thanks
There is a similar (but not identical) topic on Mozilla Connect , and I posted there. But I did not get a response. So I am re-posting on this new topic on Mozilla Supp… (baca lebih lanjut)
There is a similar (but not identical) topic on Mozilla Connect , and I posted there. But I did not get a response. So I am re-posting on this new topic on Mozilla Support. I have a similar problem to what was discussed on Connect. I am using Firefox 133.0.3 on Windows 10 Professional. After Firefox has been running for a while, I get a message from Windows 10 that the free space on my C:drive is low. I did a directory listing on my C-drive before and after Exiting Firefox; I saw no large files disappearing. Then I decided to do "dir c:\ /ah" to see hidden files. What I saw was that pagefile.sys decreased in size from 29,925,748,736 to 16,270,770,176. This was a decrease of 13.7 Gb. Is this normal? I have lots of windows and tabs open in Firefox. Thanks.
Hi, after update 137.0.1 (64-bit) using Firefox with latest Gecko driver 0.36.0 in Python Selenium stalls and fails to initiate drivers without returning initiation error… (baca lebih lanjut)
Hi, after update 137.0.1 (64-bit) using Firefox with latest Gecko driver 0.36.0 in Python Selenium stalls and fails to initiate drivers without returning initiation errors every second launch, previously this stall without returning initiation errors would happen every ~25th launch. Also when it does successfully launches previously 9 instances used to use about 95% of my 8 GB RAM, now 6 instances use 100% RAM. Nothing else in my system changed besides Firefox update.
For little more than year I've been battling with an issue, where after watching Youtube for hour or two, and having 5-6 open tabs with videos, at some point Firefox woul… (baca lebih lanjut)
For little more than year I've been battling with an issue, where after watching Youtube for hour or two, and having 5-6 open tabs with videos, at some point Firefox would crawl to a stop with UI going down to 1-2 fps, and finally inability to click anything, until I restarted the browser.
Only today I have pieced together, that when it happens, task manager shows almost all of my GPU's VRAM (Dedicated GPU memory) is claimed by Firefox. It looks that there is a GPU memory leak somewhere.
How should I go on about this? If it's a bug, what I should include in a report?
Here is ~2 hrs of progress, PC and Firefox specs at the end:
This is after watching one ~20 minute video:
GPU (pid 10124) Explicit Allocations
0.24 MB (100.0%) -- explicit └──0.24 MB (100.0%) -- gfx/webrender/gpu-cache
├──0.24 MB (100.0%) ── metadata └──0.00 MB (00.00%) ── cpu-mirror
Other Measurements
0.78 MB (100.0%) -- gfx └──0.78 MB (100.0%) ── webrender/textures/gpu-cache
265.84 MB ── gpu-committed
1,246.20 MB ── gpu-dedicated
11.72 MB ── gpu-shared
End of GPU (pid 10124)
After second video, another 15 minutes later:
GPU (pid 10124) Explicit Allocations
0.29 MB (100.0%) -- explicit └──0.29 MB (100.0%) -- gfx/webrender/gpu-cache
├──0.29 MB (100.0%) ── metadata └──0.00 MB (00.00%) ── cpu-mirror
Other Measurements
0.63 MB (100.0%) -- gfx └──0.63 MB (100.0%) ── webrender/textures/gpu-cache
277.34 MB ── gpu-committed
1,737.74 MB ── gpu-dedicated
16.55 MB ── gpu-shared
End of GPU (pid 10124)
After opening and CLOSING several youtube tabs, withplaying 10-15 seconds of each video:
GPU (pid 10124) Explicit Allocations
0.19 MB (100.0%) -- explicit └──0.19 MB (100.0%) -- gfx/webrender/gpu-cache
├──0.19 MB (100.0%) ── metadata └──0.00 MB (00.00%) ── cpu-mirror
Other Measurements
0.78 MB (100.0%) -- gfx └──0.78 MB (100.0%) ── webrender/textures/gpu-cache
390.18 MB ── gpu-committed
4,339.20 MB ── gpu-dedicated
4.27 MB ── gpu-shared
End of GPU (pid 10124)
================================
Here, I closed all tabs except about:memory. After another ~60 minutes of random browsing non-video pages (literally text pages and Google Docs):
GPU (pid 10124) Explicit Allocations
0.25 MB (100.0%) -- explicit └──0.25 MB (100.0%) -- gfx/webrender/gpu-cache
├──0.25 MB (100.0%) ── metadata └──0.00 MB (00.00%) ── cpu-mirror
Other Measurements
0.94 MB (100.0%) -- gfx └──0.94 MB (100.0%) ── webrender/textures/gpu-cache
324.99 MB ── gpu-committed
4,396.21 MB ── gpu-dedicated
0.62 MB ── gpu-shared
End of GPU (pid 10124)
It never goes down.
Then, I opened played for few seconds, stopped and closed (including tabs) ~15 youtube videos:
================================
GPU (pid 10124) Explicit Allocations
52.08 MB (100.0%) -- explicit ├──23.07 MB (44.29%) -- gfx │ ├──23.07 MB (44.29%) -- webrender │ │ ├──10.00 MB (19.20%) ── upload-stagin-memory │ │ ├───6.74 MB (12.95%) ── texture-cache/structures │ │ ├───3.69 MB (07.08%) -- interning │ │ │ ├──1.48 MB (02.84%) -- clip │ │ │ │ ├──0.78 MB (01.50%) ── interners │ │ │ │ └──0.70 MB (01.34%) ── data-stores │ │ │ ├──1.24 MB (02.39%) -- text_run │ │ │ │ ├──0.92 MB (01.77%) ── interners │ │ │ │ └──0.32 MB (00.62%) ── data-stores │ │ │ └──0.96 MB (01.85%) ++ (15 tiny) │ │ ├───0.95 MB (01.83%) ++ (6 tiny) │ │ ├───0.89 MB (01.71%) ── shader-cache │ │ └───0.79 MB (01.52%) -- resource-cache │ │ ├──0.79 MB (01.52%) ── fonts │ │ └──0.00 MB (00.00%) ++ (3 tiny) │ └───0.00 MB (00.00%) ++ (3 tiny) ├──19.94 MB (38.30%) ── heap-unclassified ├───4.00 MB (07.68%) ── ac2d/heap-resources ├───3.25 MB (06.25%) -- threads │ ├──2.29 MB (04.40%) ++ stacks │ └──0.96 MB (01.85%) -- overhead │ ├──0.91 MB (01.76%) ── kernel │ └──0.05 MB (00.09%) ++ (2 tiny) ├───1.35 MB (02.59%) -- phc │ ├──1.35 MB (02.59%) ── metadata │ └──0.00 MB (00.00%) ── fragmentation └───0.46 MB (00.89%) ++ (9 tiny)
Other Measurements
134,217,727.94 MB (100.0%) -- address-space ├──132,114,625.34 MB (98.43%) ── free(segments=370) ├────2,101,793.05 MB (01.57%) -- reserved │ ├──2,097,077.34 MB (01.56%) ── mapped(segments=14) │ └──────4,715.70 MB (00.00%) ── private(segments=550) └────────1,309.55 MB (00.00%) ++ commit
72.73 MB (100.0%) -- decommitted └──72.73 MB (100.0%) -- heap
├──61.39 MB (84.41%) ── decommitted
└──11.34 MB (15.59%) -- unused-pages
├──11.34 MB (15.59%) ── fresh
└───0.00 MB (00.00%) ── madvised
304.62 MB (100.0%) -- gfx └──304.62 MB (100.0%) -- webrender
├──302.79 MB (99.40%) -- textures │ ├──192.00 MB (63.03%) ── render-targets │ ├───44.00 MB (14.44%) -- texture-cache │ │ ├──44.00 MB (14.44%) ── atlas │ │ └───0.00 MB (00.00%) ── standalone │ ├───32.00 MB (10.51%) ── depth-targets │ ├───18.93 MB (06.21%) ── swap-chains │ ├───11.25 MB (03.69%) ── upload-staging-textures │ └────4.61 MB (01.51%) ++ (5 tiny) └────1.83 MB (00.60%) ++ images/mapped_from_owner
128.00 MB (100.0%) -- heap ├───72.73 MB (56.82%) -- decommitted │ ├──61.39 MB (47.96%) ── unmapped │ └──11.34 MB (08.86%) -- unused-pages │ ├──11.34 MB (08.86%) ── fresh │ └───0.00 MB (00.00%) ── madvised └───55.27 MB (43.18%) -- committed
├──48.27 MB (37.71%) ── allocated ├───3.95 MB (03.09%) -- bin-unused │ ├──2.35 MB (01.84%) ++ (44 tiny) │ └──1.60 MB (01.25%) ── bin-1024 ├───1.96 MB (01.53%) ── bookkeeping └───1.09 MB (00.85%) ── unused-pages/dirty
41 (100.0%) -- ipc-channels ├───7 (17.07%) ── PCompositorManagerParent ├───7 (17.07%) ── PImageBridgeParent ├───7 (17.07%) ── PVRManagerParent ├───6 (14.63%) ── PRemoteDecoderManagerParent ├───5 (12.20%) ── PAPZInputBridgeParent ├───4 (09.76%) ── PCanvasManagerParent ├───2 (04.88%) ── PVideoBridgeParent ├───1 (02.44%) ── PGPUParent ├───1 (02.44%) ── PProfilerChild └───1 (02.44%) ── PVsyncBridgeParent
78 (100.0%) -- ipc-channels-peak ├──14 (17.95%) ── PCompositorManagerParent ├──14 (17.95%) ── PImageBridgeParent ├──14 (17.95%) ── PVRManagerParent ├──13 (16.67%) ── PRemoteDecoderManagerParent ├──10 (12.82%) ── PCanvasManagerParent ├───8 (10.26%) ── PAPZInputBridgeParent ├───2 (02.56%) ── PVideoBridgeParent ├───1 (01.28%) ── PGPUParent ├───1 (01.28%) ── PProfilerChild └───1 (01.28%) ── PVsyncBridgeParent
25 (100.0%) -- observer-service └──25 (100.0%) -- referent
├──22 (88.00%) ── strong
└───3 (12.00%) -- weak
├──3 (12.00%) ── alive
└──0 (00.00%) ── dead
1 (100.0%) -- preference-service └──1 (100.0%) -- referent
├──1 (100.0%) ── strong └──0 (00.00%) ++ weak
1 ── ac2d-context-count
0 ── ac2d-target-count
4.00 MB ── ac2d-texture-memory
0.00 MB ── gfx-d2d-vram-draw-target
0.00 MB ── gfx-d2d-vram-source-surface
462.87 MB ── gpu-committed
6,829.63 MB ── gpu-dedicated
0.62 MB ── gpu-shared
48.27 MB ── heap-allocated
1.00 MB ── heap-chunksize
686.68 MB ── private
558.20 MB ── resident
481.14 MB ── resident-unique
44.44 MB ── system-heap-allocated
2,103,102.59 MB ── vsize
129,414,503.44 MB ── vsize-max-contiguous
0 ── webgl-buffer-count
0.00 MB ── webgl-buffer-memory
0 ── webgl-context-count
0 ── webgl-renderbuffer-count
0.00 MB ── webgl-renderbuffer-memory
0 ── webgl-shader-count
0 ── webgl-texture-count
0.00 MB ── webgl-texture-memory
End of GPU (pid 10124)
This just continues, when gpu-dedicated hits ~7.8 GB, Firefox becomes unusable, and rest of the system appears a bit sluggish.
I can't say if this is regression, since I haven't been watching YT at all until recently.
Windows 10 Pro 22H2 Firefox Nightly 64 bit EN, 139.0a1 build 20250405211119 Checked in my normal everyday profile and with new clean one. GPU acceleration enabled, all video codecs installed.
Hardware: Core i7 9750H, 32 GB DDR4, GeForce 4060 8 GB. this is NOT a RAM issue, RAM usage never goes above ~19 GB on this PC.
It happens a tad bit slower than before, when I had 1060 6 GB.
I also noticed it on my laptop with integrated Intel GPU, but I don't have it anymore, so can't really check.
My Firefox uses up to 60% of the CPU on my laptop. How to reduce it, how to fix it?
Even with all media tabs closed, GPU process keeps hogging memory. Tried with extensions disabled, but no effect. The main culprit is this GPU process. screenshot attache… (baca lebih lanjut)
Even with all media tabs closed, GPU process keeps hogging memory. Tried with extensions disabled, but no effect. The main culprit is this GPU process. screenshot attached.
By offering thoughts on this dramatic increase in RAM usage.
For some weeks I have ad an issue with Firefox using 50%-100% of CPU. Normally it is the Firefox process itself, sometimes it is also "Privileged Cont". OS is Kubuntu 24… (baca lebih lanjut)
For some weeks I have ad an issue with Firefox using 50%-100% of CPU. Normally it is the Firefox process itself, sometimes it is also "Privileged Cont".
OS is Kubuntu 24.04. Firefox has done this across 2-3 versions.
Things I have tried:
Restarting Firefox No change, I'll even get 100% cpu usage with no tabs open
Refresh Firefox to remove settings and addons No change
Uninstall Snap and try direct Apt package No change
Remove ~/.mozilla to fully remove any residual settings/cache/etc No change
Try with and without hardware acceleration See: https://support.mozilla.org/en-US/questions/1308215 No change!
I would blame my old computer hardware, but Brave runs fine. I am now using Brave, but would dearly like to return to Firefox as I miss containers, and I don't support a chromium dominated web.
Please assist or advise why Firefox seems to be slowing down my system by memory usage. I have a handful (6) of tabs open on 1 browser session and my system started slowi… (baca lebih lanjut)
Please assist or advise why Firefox seems to be slowing down my system by memory usage. I have a handful (6) of tabs open on 1 browser session and my system started slowing down so I checked my task manager and it shows that I have more than a dozen of Firefox instances open chewing up almost 90% of my memory.
Please assist or advise me on how to tweak my browser to perform better, and not to show ghost instances
I'm finding that firefoxcp isolated web content uses a LOT of memory on my Mac Mini. What can I do about this besides not using Firefox. I like the browser and have been … (baca lebih lanjut)
I'm finding that firefoxcp isolated web content uses a LOT of memory on my Mac Mini. What can I do about this besides not using Firefox. I like the browser and have been using it since its introduction
Unable to watch on YT ESL spirit v EF CS2 as memory usage constantly going up until pc almost locks up. Had this issue a few weeks back and it was the chat however now di… (baca lebih lanjut)
Unable to watch on YT ESL spirit v EF CS2 as memory usage constantly going up until pc almost locks up. Had this issue a few weeks back and it was the chat however now disabling chat makes no difference.
Nm tried disabling Ublock origin and it's fixed, left this there as it might be useful to you guys
I can only use firefox for 90 minutes at a time, before the entire system crashes. Since the last couple of updates, the infamous memory leak issue has gotten significa… (baca lebih lanjut)
I can only use firefox for 90 minutes at a time, before the entire system crashes.
Since the last couple of updates, the infamous memory leak issue has gotten significantly worse. Now 30 minutes of use with no add-ons sees the memory use swell to 13 GB, crashing the system. Sometimes windows 10 crashes, sometimes it just kills firefox.
The thing is, when I check about:memory, it says firefox is only using 1.5 GB. However task manager says 13 GB, and if I close the browser, suddenly 13 GB memory gets freed up.
Does anyone have any idea why there's such a discrepancy?
Hi, I use Firefox all the time, love it. But I have noticed a problem. If I have say 7 tabs open, none of them doing anything, then go away from my laptop for say 20 min… (baca lebih lanjut)
Hi, I use Firefox all the time, love it. But I have noticed a problem.
If I have say 7 tabs open, none of them doing anything, then go away from my laptop for say 20 minutes, when I come back the fans on the laptop are screaming. Even if it was minimise.
I have a fairly modern laptop Dell GSeries1522, 12th gen processor, 16gb ram, i7.
I have tested this issue using Edge and Chrome with exactly the same tabs open and the laptop is all quiet. I'm on the precipice of moving to Edge. Happy to provide more information. Task Manager now shows FF using 1223.0mb of memory, Edge 466.7mb. They are both in "efficiency mode".
Any help or advice would be great.
Peter Hall Brisbane, Australia.
V 135.0.1 FF now using a lot of memory and processes.
Lately, I’ve noticed Firefox consuming more RAM, especially with multiple tabs open. Is this a common issue in recent updates? What are some tips to optimize Firefox perf… (baca lebih lanjut)
Lately, I’ve noticed Firefox consuming more RAM, especially with multiple tabs open. Is this a common issue in recent updates? What are some tips to optimize Firefox performance on lower-end PCs? Would love to hear your experiences!
Firefox is creating very high CPU use with many WebThumbnailExtension Web Connect processes. The processes disappear after shutting down Firefox and other programs that a… (baca lebih lanjut)
Firefox is creating very high CPU use with many WebThumbnailExtension Web Connect processes. The processes disappear after shutting down Firefox and other programs that access the internet. Does anyone have an answer on how to prevent this from happening?
MacBook Pro M4 with MacOS Sequoia 15.3.1
About once a minute or more Firefox lag by 10-15 seconds before showing a character or characters I have typed. It seems to be using a lot RAM. I have one window open w… (baca lebih lanjut)
About once a minute or more Firefox lag by 10-15 seconds before showing a character or characters I have typed.
It seems to be using a lot RAM. I have one window open with six tabs, including this one, and it is using nearly 8GB. There are 48 processes showing in Activity monitor.
I am using version 135 on a Mac Book Pro running MacOS 15.3 (Sequoia).
It is almost unusable.