Why is Firefox slowing down?

[ka9qlq]

When I first installed Feisty there was a noticeable speed INCREASE in everything including FF but now 19 days later FF is really dragging, most web pages take forever to load and max the cpu. Even switching tabs can max the cpu for 5-10 seconds. Anyone else had this problem? Ideas?

[cpradio]

Re: Why is Firefox slowing down?

I don't know about you, but if I run firefox for a few days straight, it will do that on me. Once I close all open instances, and reopen it, it is fast again for a few more days.

[sean_gilmore]

Re: Why is Firefox slowing down?

have you done the about:config changes in firefox to make it run faster (i read about them using stumble upon) they dont add that much more speed, but it is slightly noticeable.

[ka9qlq]

Re: Why is Firefox slowing down?

Well I did try restarting FF even X not a full reboot though, and no I didn't, what about config tips? I did try something that has me wondering. I switched off Java scripts and the speed's back. Wasn't there a Java update last week? Maybe it's not FF?

[sean_gilmore]

Re: Why is Firefox slowing down?

o edit settings bellow use these steps:
1. Open Mozilla FireFox
2. In the address bar type: about:config or aboutlugins for plugin paths

Below are tweaks, which categorised into each computer situation


Quick Settings
user_pref("network.http.pipelining", true);
user_pref("network.http.pipelining.firstrequest", true);
user_pref("network.http.pipelining.maxrequests", 8);
user_pref("nglayout.initialpaint.delay", 0);

These are settings that enable Pipelining which makes firefox do multiple data requests at once, which speed things up a bit.


All Configurations
user_pref("network.http.pipelining", true);
user_pref("network.http.proxy.pipelining", true);
user_pref("network.http.pipelining.maxrequests", 8);
user_pref("content.notify.backoffcount", 5);
user_pref("plugin.expose_full_path", true);
user_pref("ui.submenuDelay", 0);
Fast Computer Fast Connection
user_pref("content.interrupt.parsing", true);
user_pref("content.max.tokenizing.time", 2250000);
user_pref("content.notify.interval", 750000);
user_pref("content.notify.ontimer", true);
user_pref("content.switch.threshold", 750000);
user_pref("nglayout.initialpaint.delay", 0);
user_pref("network.http.max-connections", 48);
user_pref("network.http.max-connections-per-server", 16);
user_pref("network.http.max-persistent-connections-per-proxy", 16);
user_pref("network.http.max-persistent-connections-per-server", 8);
user_pref("browser.cache.memory.capacity", 65536);


Fast Computer Fast Connection
user_pref("content.interrupt.parsing", true);
user_pref("content.max.tokenizing.time", 2250000);
user_pref("content.notify.interval", 750000);
user_pref("content.notify.ontimer", true);
user_pref("content.switch.threshold", 750000);
user_pref("nglayout.initialpaint.delay", 0);
user_pref("network.http.max-connections", 48);
user_pref("network.http.max-connections-per-server", 16);
user_pref("network.http.max-persistent-connections-per-proxy", 16);
user_pref("network.http.max-persistent-connections-per-server", 8);
user_pref("browser.cache.memory.capacity", 65536);


Fast Computer, not so fast connection
This configuration is more suited to people without ultra fast connections. We are not talking about dial up connections but slower DSL / Cable connections.
user_pref("content.max.tokenizing.time", 2250000);
user_pref("content.notify.interval", 750000);
user_pref("content.notify.ontimer", true);
user_pref("content.switch.threshold", 750000);
user_pref("network.http.max-connections", 48);
user_pref("network.http.max-connections-per-server", 16);
user_pref("network.http.max-persistent-connections-per-proxy", 16);
user_pref("network.http.max-persistent-connections-per-server", 8);
user_pref("nglayout.initialpaint.delay", 0);
user_pref("browser.cache.memory.capacity", 65536);


Fast Computer, Slow Connection (dial-up)
user_pref("browser.xul.error_pages.enabled", true);
user_pref("content.interrupt.parsing", true);
user_pref("content.max.tokenizing.time", 3000000);
user_pref("content.maxtextrun", 8191);
user_pref("content.notify.interval", 750000);
user_pref("content.notify.ontimer", true);
user_pref("content.switch.threshold", 750000);
user_pref("network.http.max-connections", 32);
user_pref("network.http.max-connections-per-server", 8);
user_pref("network.http.max-persistent-connections-per-proxy", 8);
user_pref("network.http.max-persistent-connections-per-server", 4);
user_pref("nglayout.initialpaint.delay", 0);
user_pref("browser.cache.memory.capacity", 65536);


Slow Computer, Fast Connection
user_pref("content.max.tokenizing.time", 3000000);
user_pref("content.notify.backoffcount", 5);
user_pref("content.notify.interval", 1000000);
user_pref("content.notify.ontimer", true);
user_pref("content.switch.threshold", 1000000);
user_pref("content.maxtextrun", 4095);
user_pref("nglayout.initialpaint.delay", 1000);
user_pref("network.http.max-connections", 48);
user_pref("network.http.max-connections-per-server", 16);
user_pref("network.http.max-persistent-connections-per-proxy", 16);
user_pref("network.http.max-persistent-connections-per-server", 8);
user_pref("dom.disable_window_status_change", true);


Slow Computer, Slow Connection
We have entered the doldrums of the dial-up user
user_pref("content.max.tokenizing.time", 2250000);
user_pref("content.notify.interval", 750000);
user_pref("content.notify.ontimer", true);
user_pref("content.switch.threshold", 750000);
user_pref("nglayout.initialpaint.delay", 750);
user_pref("network.http.max-connections", 32);
user_pref("network.http.max-connections-per-server", 8);
user_pref("network.http.max-persistent-connections-per-proxy", 8);
user_pref("network.http.max-persistent-connections-per-server", 4);
user_pref("dom.disable_window_status_change", true);



i only did this on windows... but it only effects firefox to i think it will still help it in kubuntu

[cpradio]

Re: Why is Firefox slowing down?

Did you turn off Java, or JavaScript? Those are entirely two different things. I can hardly see JavaScript being the culprit unless you are using Extensions like GreaseMonkey. However, I can definitely see Java causing a hold up on Firefox.

[pansz]

Re: Why is Firefox slowing down?


In most cases, install NoScript plugin will greatly increase the speed your FireFox.

Yes, the plugin is "NoScript" but the advantage is not that it make your browser safer, the advantage is that it is the plugin which makes your FireFox faster!

[ka9qlq]

Re: Why is Firefox slowing down?

Did you turn off Java, or JavaScript? Those are entirely two different things.

In Edit/preferences menu I unchecked enable JavaScript and THAT fixed a lot of it, but I always had it on before and didn't have this trouble.........That why I wondered if the Java update I thought I saw last week might be the problem. It still isn't full like it was but is MUCH better.