BleepingComputer.com: has anyone noticed that FireFox 3.6.2pre is very CPU hungry?

Broni,

When Firefox was running at 96% I shut it down, shut down all other open programs and re-opened firefox and it went back to 95-97%. Later I shut it down, then remembered something and reopened shortly after closing and it ran down around 15%. I could tell the difference in performance - at 96% I waited forever for links to open - but no idea why it would suddenly quit hogging the cpu. Next time I'll remember to try safe mode.

I posted here originally because I saw this same firefox 3.6.2 behavior on all 3 of my very different computers since upgrading to 3.6.2. So JasonPC's observation was not limited to his setup. Firefox 3.6.2 has now updated itself to 3.6.3 on 2 of my computers so I'm hoping the problem has been noted and resolved. Today I'm intermittently from 1-9 cpu usage.

I'll post the spywareblaster/hijack.home question in the AII forum to be sure about the hijack.hompage. If I do have some evil code running around it's sneaky.

Thanks for all your help.

Are you viewing any PDF Documents?

Quote

Good news

For the last few weeks FireFox 3.6.2 (not the pre as title says) has been rather hungry on the CPU, I have uninstaled and restarted pc and reinstalled, removed all add-on, but still it is slowing the pc right down, using 99% of the CPU most of the time.

I have used crapcleaner and also removed all temp internet files and still not able to solve this.

Once I kill FF from task manager the pc goes from slow to extreamely fast within seconds!

So it has to be FF that is obviously causing the problems I am getting.

Has anyone else had this problem and if so how can I solve this.

This post has been edited by jasonpc: 07 April 2010 - 08:57 PM

Please, continue in your original topic: http://www.bleepingcomputer.com/forums/ind...=306379&hl=

3.6.3 is out. Don't know if it will solve our problem or not though.

Sony GRX600 VIAO [2002/3] Win2K SP4; 512 RAM

I've had no more problem w/ firefox hogging cpu on this computer since updating to 3.6.3, the 96% is now w/ system idle mostly. Also my total commit charge w/in taskmanager is less than my total physical memory.
I haven't been using the other computer, so I don't know if that one has also improved.

MaryBet82, on Apr 9 2010, 03:34 PM, said:

I would seriously upgrade your RAM to 1Gig if you can.

My thinkpad x41 that had firefox 3.6.2 and showed the same cpu usage of 96-98% w/ 3.6.2 as the Sony has 1.5 GB RAM. Since going to 3.6.3 firefox it is running around 8% CPU usage. It's back to normal as far as opening tabs and loading pages. Still have the occasional crash, but on this computer everything crashes occasionally.

The Sony VAIO has 512 RAM, but it's from 2003 and I'm expecting it to go belly up any day. It showed the same behavior as the thinkpad and w/ the upgrade to 3.6.3 firefox is now running around 9% CPU usage.
Maybe if RAM for the Sony is cheap, cheap, cheap I'll consider it. My total commit charge usually stays below my total physical memory per task manager performance tab, but it does sometimes exceed it when I'm working w/ PaperPort and Word.

Seems to me, I'd hardly got 3.6.2 installed before 3.6.3 came out, so maybe 3.6.2 had problems w/ certain configurations [like jasonpc's and mine] that got corrected.

I download/save pdf's rather than opening them in browser these days and then scan them before opening since pdf files are a current popular target of the bad guys.

I've been using Firefox for years. I still have 3.6.3 installed. But I noticed FF loads excruciatingly slowly if the HD is busy. I went so far as to install Portable Firefox on the Ramdisk just so I could get it to load while doing a video mux. Somebody suggested SRWare Iron chromium derivative. Man that browser jumps open!! I got rid of the Ramdisk, and firefox portable.

Yes, Iron will run several process simultaneously. But if you're going to do FF you're going to have to stick to your current version because FF 2.6.4 is going the same route. One exe file just can't compete with the speed and responsiveness. I'm running Iron on my quad core with 8 GB ram but also on my dual core with 2 GB. It screams on the quad core, but it's still plenty snappy on the dual core. The main thing though, when you click the icon it snaps open!! No waiting 30 seconds for it to come up just because the HD doesn't happen to be idle when you launch it.

The only thing I miss so far is Secure Login for sites like Hotmail where I have more than one account. Like Opera, it plays music on sites like allmusic without installing an extension. I'm only using 2 extensions. AutoCopy and Undo Closed Tab. The rest of the stuff I use is built in.

This post has been edited by MilesAhead: 16 April 2010 - 11:19 AM