How to fix Firefox slow problem in ubuntu 10.04(Lucid)

This tutorial will explain how to fix Firefox slow problem in ubuntu 10.04(Lucid)

Open your Firefox and type about:config at URL address bar and hit enter. To make a False into True, select the line to change, and double click. On the 2nd option change, right click and select Modify

-- network.http.pipelining > Make it True

-- network.http.pipelining.maxrequests > Make it 8 or 10

-- network.http.proxy.pipelining > Make it True

-- network.dns.disableIPv6 > Make it True

I hope this helps for some users

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98 Responses

  1. Ibrahim Alghamdi says:

    I installed Ubuntu 10.04 on my friend’s laptop. And after a month he told me that FireFox is so slow, so I sent him the link and it worked finally. 🙂

    Thank you.

  2. Lufred says:

    wow it really works :)!
    Thank you!!!!

  3. Hashimoto Nokaeda says:

    It’s still slow … I think the problem is with javascript … firefox’s working slow

  4. Mary says:

    THANK YOU!!!

  5. Bob says:

    Seems to work great. Noticeable Improvement. Firefox was painfully slow before.

  6. Del says:

    The disable ipv6 solved my problem of firefox not accessing websites. Good job, thanks. I suspect there are many out there that could use this tidbit of yours.

  7. Dan says:

    Great job, iv been looking for a fix to this problem for a bit. Could do with this info posted on ubuntu problems. 🙂

  8. David says:

    I made these changes with little effect. What finally made Firefox perform as it should was editing the way Firefox connects to the Internet, and checking the “no Proxy” box. That simple change made all the difference.

  9. Mohammad Afaq says:

    Thanks, it really worked

  10. D-ubuntu-dude says:

    Had been using this since earlier ubuntu versions, got say thanks for the help!

  11. Yassa says:

    Hooray!! Works like a charm. Thanks!

  12. JP says:

    nice – many thanks!

  13. Oscar says:

    Thanks!!! this works great!!!

  14. Dhanasekaran R says:

    Works well 🙂

  15. Mick says:

    Brilliant. Thank you.

  16. Ali says:

    Very smart. The changes made a leap. I would appreciate it if you have the time to explain why these changes make that difference.

    Thanks again

  17. Ryan says:

    Made my day. I couldn’t figure out why XP in a VirtualBox was going so much faster than Firefox on the host. I think it was checking IPv6 DNS timing out then dropping to v4

    Thank you!

  18. Andrew says:

    Worked like a charm. Thanks!

  19. Dita says:

    works. hvala lepa! 🙂

  20. Komputor says:

    I have tried this along with a shell script that makes all of these changes for you(and more). But I still have the same SLOW connection to my network. I have Ubuntu Lucid on an x86 system. I’m not sure what’s going on with my setup, but if anyone out there can help it would he greatly appreciated!

  21. Chris Zeh says:

    Wow, this seems to make a huge difference, thanks!

  22. Hans says:

    Díky! WORKS WELL!

  23. Tom says:

    OH MY GOD THANK YOU! I usually use Chromium day-to-day and Firefox for development, but it was so slow I just couldn’t get anything done. I was really starting to miss Firefox, but this made it faster than ever

  24. Frank says:

    :S
    Works awesome.
    But most important: what is the cause of this? Is there a problem in Ubuntu?

  25. Doug says:

    I applied the changes above and it was still very slow for me.

    cat /etc/resolv.conf

    Showed 3 DNS lookup sites… the first one was pointing to my Comcast Modem address. (I think… 192.168.0.1)

    My guess is the reason Windows IE Explorer is fast is because it probably uses all 3 address and responds to the one that responds first for DNS lookup.

    Whereas Firefox appears to be looking at the first one… timing out. (Because it wasn’t valid) then tried the 2nd one… worked.

    Next URL, try first one, bad, try next one good.
    That’s my guess based on what I was seeing…

    To fix, I changed the order of the DNS entries and put the Cable Modem last… I should probably just remove it.

    If you don’t know what to put for your DNS, you might try calling your ISP and see what they recommend. If your router is set up for DHCP, then it’s settings will automatically propagate to your networks settings.

  26. Mehdi says:

    it’s great … working perfectly 🙂
    thank you man

  27. Terry says:

    Worked well for me, thank you

  28. Bernie Heff says:

    Worked great for me too!! Thanks

  29. Richi says:

    ok! thx. u-10.04 f-3.6.11

  30. Andy says:

    This remains a problem when using Firefox with Ubuntu 10.10 as well. Your instructions fixed my issue so thanks very much!

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