Mozilla Still Perplexed as to Why Firefox Takes So Much RAM

Wile E · Nov 13, 2007

A lot of it has to do with the way it caches pages. If you type about:config in the address bar and hit enter, then do a search for cache, you can fine tune the amount of memory it uses. You can even completely disable it's caching to ram, but that slows down revisiting pages quite a bit. While not the best, mine never goes over 90MB, and I have 18 extensions running.

Easy Rhino · Nov 13, 2007

as someone else pointed out, it has more to do with where the memory goes after you close tabs. normally i will have 5 or 6 tabs open. when i close 4 of them out FF still uses the same amount of memory. very strange.

MadCow · Nov 13, 2007

Mine does that too. Using 120mb with 2 tabs open.

Wile E · Nov 13, 2007

Easy Rhino said:
as someone else pointed out, it has more to do with where the memory goes after you close tabs. normally i will have 5 or 6 tabs open. when i close 4 of them out FF still uses the same amount of memory. very strange.

Right, that's why I said "a lot of the reason", not the whole reason. If you limit the amount it caches, it doesn't build up near as much.

OnBoard · Nov 13, 2007

I have limited it to 10MB from when I started using FF (just like I did with IE), default is 50MB. Earlier in this thread i said it uses 205MB, well now it uses 225MB (226MB..227MB) tomorrow more.. (now 228MB) Something is really wrong with it

(230MB and I honestly typed those mem usages while I wrote this..)

turtile · Nov 14, 2007

Currently using 55MB.

Anyone here ever use Dillo?
http://www.dillo.org/

p_o_s_pc · Nov 14, 2007

I am using 52mb right now that is with 3 tabs open and all add-ons disabled.

peach1971 · Nov 14, 2007

55 MB | 3 tabs | 11 add-ons enabled.

insider · Nov 14, 2007

Now 8 tabs open, 1.026GB of ram used for firefox, record ram usage is around 1.7GB for firefox on my system, it's on 24/7 mind you.

Wile E · Nov 14, 2007

insider said:
Now 8 tabs open, 1.026GB of ram used for firefox, record ram usage is around 1.7GB for firefox on my system, it's on 24/7 mind you.

It has to be a problem with an extension or a setting. That's not even close to normal FF behavior, even with the memory leak.

insider · Nov 14, 2007

Addons: 3, Real player plugin, talkback, Java runtime environment.

Disk cache is disabled on the browser.

RSS feeds: 19

Wile E · Nov 14, 2007

insider said:
Addons: 3, Real player plugin, talkback, Java runtime environment.

Disk cache is disabled on the browser.

RSS feeds: 19

Diskcache won't effect ram usage. browser.cache.memory.* is what you are looking for.

insider · Nov 14, 2007

This is what I have:

Code:

                                                            Status     Type               Value
browser.cache.memory.enable        true         boolean           true

Wile E · Nov 14, 2007

insider said:
This is what I have:

Code:

Status Type Value browser.cache.memory.enable true boolean true

Here's mine.

insider · Nov 14, 2007

The browser.cache.memory.capacity is missing from my config!

Wile E · Nov 14, 2007

insider said:
The browser.cache.memory.capacity is missing from my config!

What version of FF are you on?

[I.R.A]_FBi · Nov 14, 2007

add it

insider · Nov 14, 2007

Version 2.0.0.9

Wile E · Nov 14, 2007

insider said:
Version 2.0.0.9

It should be in there then. Right click in the about:config window somewhere, and select new-->Integer

Should walk you thru the step needed to make it.

insider · Nov 14, 2007

Wouldn't create integer when I select it only a string value.

Wile E · Nov 14, 2007

insider said:
Wouldn't create integer when I select it only a string value.

That's weird. It works on mine. I created browser.cache.memory.capacity2 and it worked.

Did you put the dots in the name? You have to do that. And after you enter the name, it should let you input a value in another pop-up box. (The value for that setting is in KB, 1024=1MB)

insider · Nov 14, 2007

Ofc. entered 262144 anyway for 256MB

Wile E · Nov 14, 2007

insider said:
Ofc. entered 262144 anyway for 256MB

Probably don't even need that much. Default is 64MB. I set mine to 32MB.

insider · Nov 14, 2007

Current FF ram usage 209MB after under 20 mins and increasing...

Wile E · Nov 14, 2007

insider said:
Current FF ram usage 209MB after under 20 mins and increasing...

Are you still set for 256MB cache? If so, it should get to around 350MB. If it goes higher, you have an add-on problem for sure. Next step is to try to disable your add-ons, one by one, to find the culprit.

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