Ubuntu Networking :: Firefox - Disabling Ipv6 Through The "about:config" Option
May 29, 2010
I am having some hang issues with firefox and am not sure what can be the problem. Here is my specs:
Toshiba Satellite L35 Laptop
Ubuntu 10.4 Lucid / Windows Vista Home Basic dual boot
Atheros Integrated NIC
Firefox v3.6.3
Everything is working fine on the network side, being confirmed by both my wife's EEE Netbook, and my iPod(r) Touch. There is no problem with my network interfaces, or my interface card, as confirmed by the other devices' ability to connect and browse at normal speeds.
However; with my lappy running Ubuntu and Firefox, a LOT of websites hang/lag when attempting to browse websites. I have read on some of the forums about disabling ipv6 through the "about:config" option and that seemed to help a little, but not to where it should be. I have tried a lot of options, but it is still lagging.
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Feb 1, 2010
Is karmic is slower for you all: if you're running windows ping a server on windows/ubuntu and compare. 9.10 is consistently slower for me. I've seen enough "slow internet" posts to suspect that someone screwed up bad. Everyone says it's ipv6, but none of the fixes work for me. Pretty sure it's ipv6 (or at least a dns-related problem):
[Code]....
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Jan 23, 2011
I have installed Ubuntu 10.10 on my laptop, and the internet was very slow and kept dropping in and out for any web browsers and sometimes the Ubuntu software center. After searching the internet for a while I came across several article saying to disable ipv6, which I have done, but the issue persists
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Jun 6, 2011
I installed ubuntu yesterday on my desktop. I noticed that the global internet connection is very slow (browsing,downloading from apt-get, etc).
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Mar 10, 2011
I have just installed dyndns in my local ubuntu server runing on apache...I dont have static Ip's so I have to use ipv6 ip's how can I configure dyndns to run with ipv6 ?
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Mar 26, 2010
i have found the solution to disabling ipv6 but the command line is not recognised when i enter it.
i open terminal and input sudo gedit/etc/modprobe.d/bad-list/ but the command is not recognised
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Apr 10, 2011
I've had a hell of a time with this and now all but YAST2 are ok. Going back some time to 10.0 this could be used to disable it very completely.
open terminal and run
echo "alias net-pf-10 off" >> /etc/modprobe.conf
echo "alias ipv6 off" >> /etc/modprobe.conf
restart computer. Has anyone used this on more recent issues even 11.4 and are there any repercussions?I assume that the inverse will but it back on ie off's just become on's? I will be using cups when I install my printer which is one concern and I am not at all sure that modprobe will do anything anymore?
I also recollect that there is a command to cause the kernel to effectively reboot which would save restarting. Can't remember what it is. Maybe some one can refresh my memory.
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Jan 4, 2010
have had a problem with my ubuntu system recently in that it will only let me connect to the Internet through Firefox if I switch network.dns.disableIPv6 on. How do I do the equivalent in Ubuntu to enable me to use Ephiphany etc which are not working anymore
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Mar 10, 2011
I have just installed dyndns in my local ubuntu server runing on apache...I dont have static Ip's so I have to use ipv6 ip's
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Jul 22, 2009
I used to play with gw6c ( a client for tunnel broker ) It works well with fedora9 , fedora 10, but not with leonidas. my rpm is gw6c-6.0-0.4.beta4.fc9.i386.rpm ( a little old!) when I tried to install i have got this: libcrypto.so.7 est ncessaire pou w6c-6.0-0.4.beta4.fc9.i386 I try to make a soft link to libcrypto.so.0.9.8k, but nothing; The question :-Is there a solution for that pb - did you know a better client for non native ipv6 connectivity?
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Aug 31, 2011
I have been struggling to get FC15 to act as an IPv6 router for a while now, am sure I am missing something trivial.. The idea is that I have a ppp / adsl connection (this works fine), use the wireless card on my pc with hostapd and dhcpd to provide connections to other pcs (works fine), and radvd to delegate ipv6 addresses.
The issue seem to be that as soon as I turn on ipv6 forwarding (net.ipv6.conf.all.forwarding =1), the ppp connection no longer gets an IPv6 address. This means the router cannot ping any ipv6 address outside my network.
If I disable ipv6 routing, my router gets an IPv6 address on its ppp connection, and can ping things such as ipv6.google.com just fine, however (of course) no packets are forwarded from my network and radvd complains that forwarding is disabled.
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Feb 25, 2011
I want to modify apache IPv4 configuration to IPv6 configOn both windows and ubuntu.
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Jun 19, 2011
Kernel 2.6.21.5, slackware 12.0
(Mozilla) Firefox 2.0.0.4
where the option to disable spelling checking is in FF? I think Edit>Preferences contains all of the settable options.
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Dec 29, 2010
Support for ipv6 keeps being put into the kernel and now into browsers.I blacklisted ipv6 in Slackware and that solved the slow internet response until I updated to the latest Opera and Firefox browsers. Both were horribly slow again. Firefox could be reconfigured to kill ipv6 by running about:config as a url and disabling ipv6.
The new Opera 11 is different. I can't find any config to disable ipv6. Does anyone have an idea?I reverted to Opera 10.11 in order to have zippy internet access again, and not "dialup modem" speeds.
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Apr 9, 2010
I wanna see the wifi signal strength.But when i run the command iwconfig , it tells me 'no wireless extensions'.By googling I found that I need to enable config option CONFIG_NET_RADIO.I see that this has to be done in boot which has config files.So I typed the command grep CONFIG_NET_RADIO /boot/<config-2.6.31.5-127.fc12.i686> (my fedora version is 2.6.31.5-127.fc12.i686).But I got the error as "bash: syntax error near unexpected token `newline' ".I dont know the reason.I also want to know if I have to install driver(ndiswrapper)for viewing wireless signal strength. I thought that the drivers will present default.
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Jan 5, 2010
I have a system using a Linksys WUSB54B usb wifi adapter that needs the rt2x00/rt2500 modules. Using the fresh install kernel, 2.6.29.6-smp, the modules are there and I get my interface up.
But, when I configure my own kernel, not an smp system, I cannot find the .config option in the menu for rt2x00 network adapter support and the modules are not in /lib/modules/vmlinuz-2.6.29.6-first directory tree after a "make modules_install".
I looked through the configuration menu, but could find no reference to the rt2x00 drivers.
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Mar 17, 2011
I am using Fedora 14 i386 and I am trying to configure Mozilla Firefox 3.6.15 to work with the JRE plugin. I have tried sever tutorials of this type (some slightly different) [URL]. However, I cannot get firefox to recognize the plugin. When I used the tutorial above I was also getting SELinux AVC denial warnings. If not clearly stated above, I downloaded the JRE directly from Oracle. I need to use the version from Oracle/Sun because the VPN client I have to use (from Juniper Networks) will not work with gcj or the openjdk provided from the default yum repositories.
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Nov 29, 2010
I have Ubuntu 10.10 installed on my laptop. My ISP natively supports ipv6, but since last weekend, I do not get an ipv6 ip. When I use a live cd however, I do get an ipv6 ip. For as far as I can see, all settings (/etc/network/interface and the settings in network manager) are exactly the same.
Output of ifconfig:
Code:
eth0 Link encap:Ethernet HWaddr XX:XX:XX:XX:XX:XX
inet addr:XXX.XXX.XXX.XXX Bcast:XXX.XXX.XXX.XXX Mask:XXX.XXX.XXX.XXX
inet6 addr: XXXX::XXXX:XXXX:XXXX:XXXX/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[Code].....
EDIT: is there a way to let the netwerk be automatically configured as happens during installation? It would be nice to start with a clean and new set of network config files as there were just after I installed Ubuntu on my system, without a full reinstall of my system.
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Dec 30, 2010
In firefox, I try to check the box in Edit → Preferences → Advanced → General which says 'submit crash report', but everytime I close this and open it again it remains unchecked. Why is that so?
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Feb 6, 2011
I would like to set my FireFox up so that when I type something in the address bar that is not a url, it will automatically do a google search. I have done this before, but that was a while ago and I can't remember what settings to change in about:config.Currently, when I type something that is not a url, it performs a search and then automatically opens the first web page that it finds, like a "I'm feeling lucky" search. I just want to see a google list.
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Nov 4, 2010
I have a networking problem with my computer. Under Windows, the computer can get both v4 and v6 address via DHCP. However, the same computer can only get v4 address under Ubuntu. Does anybody know how to solve this problem?
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Apr 2, 2009
I have tried to disable the ipv6 support in ubuntu 9.04 32bit but the /etc/modprobe.d/aliases does not exist so I can't disable the suport as sugested for the previews versions. I need to disable it becouse it is pounding a total maihem in my vamware machines.
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Apr 18, 2010
On my Windows xp computer, when i open Firefox 3.6.3 and go into the preferences I can click "update" and firefox can check for updates and download and install them all from inside the browser.I have Firefox 3.6.3 on Opensuse 11.2, and in the firefox preferences in the 'update' section there is no way to download or install updates.Is it impossible for Firefox to update and install by from inside firefox in OpenSuse?Do we need to use the command line or Yast or one click installs to install software on opensuse? Can't Firefox update from inside Firefox without yast or command line?
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Jul 6, 2010
some of you might have experienced the network speed problem that occurs when ipv6 is enabled. So have I. I know about the common workaround of disabling ipv6, but recently I tested the new ubuntu live system, and the problem was gone with ipv6 being enabled.
Now my question is: Do you know what ubuntu is making different? I haven't found an explanation. Is there a better workaround than blacklisting ipv6?
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May 4, 2010
I cannot connect to wirelessly when I have IPv6 enabled for the wireless network card. It works great on ethernet, but if I enable it for the wireless card then I cannot even get IPv4.
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Sep 18, 2010
I'm trying to assign like 80 IPv6 addresses on eth0 for virtual webhosting, but after 55 addresses I get the following error:# ip addr add 2a01:9f8:a171:1651::4b:a8af dev eth0 RTNETLINK answers: File exists.What's the problem? I don't understand that error message at all. Is the number of IPv6 addresses per device somehow limited?Ubuntu 10.4.1 server, 64 bit.
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Nov 15, 2010
I have a small wireless network running IPv6 connected though a 802.15.4 usb stick, and a network connection through eth1. I can access the nodes on the wireless network from my computer, but not from any other on the wired LAN. Also the nodes on the wireless cannot see even the address of eth1. I'm guessing i have to forward all packets from the wireless to eth1 in some way, but am unable to find an guides for this with IPv6.
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Jan 10, 2011
I've just started using ufw with the frontend gufw. I've configured it like this:
Accept everything in and out as default Block incoming FTP connections from a certain IPv4 address (brute-force for days)
Today I noticed that IPv6 connections don't work anymore. The connection to two hosts (IPv6 only) times out. As soon as I disable ufw entirely, the connections work again. The host I want to connect to is:
2001:638:a00:f00b:200:1cff:fedb:d38f port 7337
2001:638:a00:f00b:a00:6ff:fe07:cda2 port 7337
These are small telnet servers that print out a number (temperature nearby) and close again. I'm logging those values in a database.
Is ufw not IPv6-capable and blocks things it's not supposed to?
Update: ufw seems complete garbage to me... You can't even configure it while it's disabled! How am I supposed to safely activate it when the first thing it does is blocking all communications? I can't even configure it to let me in before I configure it to keep me out... And then, even if I explicitly let it pass port 7337, it still blocks it through IPv6.
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Feb 12, 2011
I've been using IPv6 on my local network and through a Hurricane Electric IPv6 tunnel. I've heard that one of the built in features of IPv6 is encryption, both scrambling the data and authenticating where the traffic came from. I've done some searching and heard of SWAN and Racoon, but some of the stuff I found is old and I would like to know what the easiest/best way to set up IPSEC for IPv6 is.
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Apr 9, 2011
IPv6.google. site works, I use Teredo or something. Is there anyway to force Chromium to use always IPv6 on hosts that support it, such as xkcd?
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