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Old 11-26-2010, 08:56 AM   #1
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Firefox 3.6.12 delays Xubuntu 10.10

I am using firefox 3.6.12 and have noticed that there are delays in all aspects of the browser. I can open up a webpage normally fine but the minute I open up additional tabs there are 2 second delays. Also when navigating from within the same page there are delays going to different sections of the website. It doesnt matter what I do. I have reinstalled firefox and have installed this on many systems just recently and I still have this issue. I install chromium right next to it without any issues. What gives ?

I followed this tutorial on how to tweak the performance but the same thing happens.

Last edited by metallica1973; 11-26-2010 at 09:44 AM.
Old 11-26-2010, 09:27 AM   #2
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What do you see in the status bar at the bottom of the Firefox window?

I'm using Firefox 3.6.12 on Ubuntu 10.04. I notice that I'm having delays with DNS and with making connections. I suspect that it is Ubuntu, not Firefox. When I use Opera the performance is about five times worse. I blame Opera for that.
Old 11-26-2010, 09:58 AM   #3
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but I use chromium without an issue. The bar at the bottom doesnt display abnormal. I have also made an adjustment with DNS using this tutorial but it does not make a difference.

PHP Code:
Network Speed DNS
This will allow Firefox to store more DNS data in the cache
thus reducing the need to query the DNS server so frequently to fetch the web site IP number.

Type about:config in Firefox address bar to open the advanced preferences
Type network.dnsCache in the filter field and hit enter
Right-click on the empty results and select "New >> Integer"
Set the preference name as network.dnsCacheEntries and set value as 1000
Right-click on the empty results and select "New >> Integer"
Set the preference name as network.dnsCacheExpiration and set value as 7200 

Last edited by metallica1973; 11-26-2010 at 10:03 AM.
Old 11-26-2010, 10:53 AM   #4
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I have reenabled ipv6 and disabled it and added more disk space for caching:

PHP Code:
and upped the caching

PHP Code:

PHP Code:
2 Gig

I also

PHP Code:
    Type about:config in Firefox address bar to open the advanced preferences 
Type browser.cache.check_doc_frequency in the filter field and hit enter
Right-click on browser.cache.check_doc_frequency and change the value to 0 (See important notes below!)
Type browser.sessionhistory.max_total_viewers in the filter field and hit enter
Right-click on browser.sessionhistory.max_total_viewers and change the value according to available memory on your system or lowerThe default values are used if you set this preference to -1:

RAM     Pages
32MB     0
64MB     1
128MB     2
256MB     3
512MB     5
1GB     8
2GB     8
4GB     8

Type browser.cache in the filter field and hit enter
Right-click on browser.cache.disk.capacity and change the value to 76800
Right-click on browser.cache.memory.capacity and change the value according to available memory on your system or lowerThe default values are used if you set this preference to -1:

Physical RAM     Memory Cache (in KB)
32 MB     2048
64 MB     4096
128 MB     8192
256 MB     14336
512 MB     22528
1 GB     32768
2 GB     45056
4 GB     59392
8 GB     75776

Important Notes

The preference browser.cache.check_doc_frequency controls how often a page content is reloaded when you visit it multiple timesSetting this preference to 0 will force the browser to load the page only once per sessionthus making it load faster on subsequent viewsNeverthelessthis can be a problem on sites with too much activitylike forums or rss feeds or if you don't close the browser very often, because the content of the page will not be updated until you restart the browser. To avoid that you can reload a page any time by holding the SHIFT key while hitting the reload button or set this preference to 3, so it can be automatically reloaded every time the content changes.

The preference browser.sessionhistory.max_total_viewers controls how many pages are kept in memory so you can switch to them when clicking the Back and Forward buttons. The number you choose here will determine how many pages you can go back in the same tab. It doesn'
t mean the page will be reloaded if you go back further than this valueIt means the back button will stop working when you reach that number of pages
This has helped but there is still a slight delay but far better than before

Last edited by metallica1973; 11-26-2010 at 10:56 AM.
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