Yonke imikhiqizo Isithangami Sokwesekwa

I have been using Firefox for more than 10 years now. it is the best browser out there. However, starting from last year I have been noticing that my computer's fan is almost always working which takes too much of my battery and I figured that Firefox is the main issue (I did so many research and tests %100 sure). Later, I herd about the new Firefox quantum, and decided to wait and not switch to another browser. the new one was released and I installed it the very first day. I was super happy that it's much faster and use less memory than other browsers (that's right). However, lately (about a month) I noticed the same the fan is always working again, so I check the task manager and found my dear Firefox quantum acting up again even though 3 taps are opened.

I really need help with this issue to stay using Firefox, I am tired of this issue and really considering switching to another browser because this is just not good at all. and I could not find any way to fix it. please see the attached pic it's just unbelievable.

Pretty much as the title says, going into task manager I see a Firefox process constantly using around ~25% of my CPU at all times as shown by the attached photo; The CPU is a quad-core 3.2Ghz i5 3330, Ending the task means that the process stops without causing any changes to Firefox, no tabs close or videos crash which only makes me wonder to what it's used for and why is it hogging my CPU.

Thanks in Advance, Deinsti

Recently my computer has been weird. I just need to use firefox to browse some web pages, then suddenly my computer gets so noisy - CPU used over 60%! I first thought that it might be somebody using my computer to dig some crypto coins, so I got MinerBlock on. It does not help. What is the problem?

I downloaded firefox 58 and made the changes listed in your article, but I am still getting multiple sessions of Firfox when I opent he browser. I set both of the browser.tabs.remote.autostart options to False as advised. SO what would you suggest I try now especially since at least 2 of the sessions are huge memory hogs taking over 100K of the available physical memory.

Last week I switched back to Firefox after a couple of years, but what I noticed is that once opened the interface seems to be very slow. When checking my CPU usage, once Firefox gets opened, the "windowserver" macOS process spikes to 80-100%. I also see other processes like "mds_stores" and "mdworker" consume a lot of CPU.

If I open Chrome besides Firefox, without actually loading any website. I can see my mouse movement lagging when hovering over the Firefox browser. I do not have this when hovering over Chrome.

Currently, I only have one extension installed + already tried to run in safe mode, but the experience is the same.

Any idea what could cause this?

Windows 7 64-bit Desktop. Firefox 58.0.2

I had 3 tabs open. While browsing my computer slowed to a crawl. I have experienced this many times. Even disabled my two addons with the same result. What can I do?

See the screenshot.

Dear Firefox Support,

I've noticed a huge spike in Firefox Quantum's memory usage recenlty imgur.com/XCDtJy8 What do you think is the cause for this? Didn't install any new extensions or plugins, already ran scans with various antivirus/antispyware & registry fixer tools, they didnt detect any malware & fixed all registry issues. I also already cleared cache & cookies, saved data, refreshed & unistalled/installed Firefox Quantum multiple times, without improvement.

Normal usage until recently was about 300-500MB total, 50 MB per subprocess. Now is about 500MB PER subprocess (around 3-4 GB total) all the time. Is there a way you could look at some data or files from my Firefox installation to determine what is the cause for this memory usage increase? Maybe looking at the "about:memory" information to see what is making the processes use so much memory? I added the troubleshooting information to this question, and am willing to provide any other information you deem neccessary for troubleshooting purpose.

Thank you so much in advance, looking forward to hear from you!

Miguel

MacBook Pro early 2011 15" fan starts spinning up when I use Firefox even just one tab/window open slowly as I open a couple more tabs starts spinning more and more. It is unusable. I have done all the resets recommended, extensions removed etc and the problem is the same. I am using Qantam. Thanks

I have had it! The current version of Firefox sucks!! Have been with Netscape from the beginning and then Firefox, have participated in the beta programs, but the bull shit answers for issues shows irresponsibility for the product. I've had it. Moving to Opera and Google Chrome. Sorry folks.

When I have a video playing in the background (for example a Twitch stream) and use Firefox in a way that causes 100% CPU usage (for example navigating a Google Maps 360° view or scrolling a complex website excessively) I get interruptions and even repetitions of short bits of the playing sound. This issue started after updating to Firefox Quantum and is quite annoying. Is this a known issue? Any potential workarounds? I'm currently using 58.0.2 (64 bit) on Windows 10 16299.

I have read and tried several of the fixes for this but I continue to have firefox over a period of time use up to 6 gigs of ram. I have spent several hours on this and I just want to let mozilla know that I am going to give up and go to a browser that doesn't cause my whole computer to freeze up because of this memory problem. I have used and recommended Firefox for many years but I no longer fell like I can do this with the current version of firefox. I did not have this trouble before this version.

 I also do computer tech work and I will now have to recommend a different browser to my clients in case they have

the same problem as me.

 I dont feel that it should take several hours of trying solutions to see if I can fix something that is a problem I didnt have

until this version of firefox. So much for it being much faster and better, this is not my experience.

Everyone I know, and many reporters, here, are having memory leak problems. Hopefully, this will be repeatable, for you: - Run ff, with a single tab, and go to: weather.com, - run Task Manager, and watch cpu head toward 90%, and memory all get consumed.

This is on a Win10 box, clean install, with new install of FF57, and no add-ons. Same issue on Win7 box, which has worked fine, for many years, until 57 came along.

(posted from Win7 box)

bp-537ecf3d-629b-4985-bb20-b50611171012 bp-2d73b7ae-ba3a-4d27-9c1e-49f2c1171012 bp-7038a1f9-bf4c-46a1-a242-22fbc1171012 bp-3aee7281-bf90-4833-bf8a-bccf11171012 bp-62301d29-5186-4484-bc06-2e11b1171012 bp-22246add-f380-472a-8e17-4dc230171012 bp-b48cad99-1938-4c27-83d1-0e8011171012

Firefox will not start in normal mode nor in safe mode. It crashes instantly to the crash reporter, right after opening.

Every time I type into the search bar of firefox it crashes and causes a hike in CPU usage, about 70% just for Firefox. Crash still happens in safe mode. Crash ID: bp-9a49b566-de96-427c-aaea-ddea91170912

What has happened with Mozilla? A month ago, there were no problems when watching stream video 1080p 60fps. But now it is impossible to do it: constant and long freezes. I have noticed that CPU load is almost 100% when watching stream. I have recorded the system parameters for 10 minutes for the same stream via Mozilla and Edge and the difference is great (see the attached files). I do not know what parameters were a month ago for Mozilla but definitely I never noticed any problems. Hope this info will be helpful to fix the problem.

I'm trying to troubleshoot some issues on my late 2013 MacBook Pro. Most notably, the performance seems to be absolutely awful with embedded HTML5 videos. For example:

https://twitter.com/CNET/status/897900931861413888

Letting this video play almost immediately pegs my CPU to the point that it actually starts skipping. The same video under Safari and Chrome plays fine and barely taps the CPU at all.

I've tried every version over 54, and this issue is being replicated with a brand new profile and zero extensions installed. It does it even on the latest nightly build as of today (8/19/17).

Any suggestions would be appreciated!

I know many folks are still having this issue, but I am hoping there is a solution out there that I've just been unable to find so far. I would have flushed Firefox long ago if Firebug weren't such an essential part of my workflow. I do have a stubborn add-on that will not go away, no matter how many times I've uninstalled every trace of the browser. I can't be sure if that's related to the problem, but I suspect that it is likely. Firefox continues to occupy over 95% of available CPU resources in my Activity Monitor, and obviously this is completely unacceptable. I am using the latest version of the OSX operating system on a Macbook Air.

The CreatePDF plugin's ability to remain present has reached supernatural levels. Anyone know about any other way to delete this thing? How is it even conceivable that it keeps returning, even when I disconnect my sync profile and delete/reinstall the browser???

Any advice is very much appreciated.

I have this problem it is so bad I have to surf with only 1 tab open and I have to wait for upto a minute before typing anything into a box say like a twitter box. And god help me if I accidentally open a second tab My memory use goes thru the roof