Firefox 3.0.2 not starting up, Error[Couldn't load XPCOM]

harry2006 · 11-11-2008, 02:09 AM

hi all. till yesterday evening everything was fine including firefox. today in the morning when i started firefox it dint come up then i tried running it from command line and got the following error message

Code:

Couldn't load XPCOM.

after googling for some time got some links in some other forums[surprisingly i dint get any @LQ, seems nobody faced similar prob?]
http://ubuntuforums.org/showthread.php?t=951615

but i'm afraid , even after doing what is mentioned there, firefox is stil down and it gives me the same error, has anyone come accross similar issues with firefox , BTW i'm using fedora 2.6.26 and firefox 3.0.2. please help me out as i use firefox most of the time, currently i'm trying to somehow manage with opera . thank you very much.

farslayer · 11-11-2008, 07:09 AM

Here is a place to start..
https://developer.mozilla.org/en/Tro...s_registration

harry2006 · 11-13-2008, 03:04 AM

Quote:

Originally Posted by farslayer

Here is a place to start..
https://developer.mozilla.org/en/Tro...s_registration

Thanks for providing this link. I went thru that and finally the section "Linux specific hints" and tried to do what's been asked there. Did run the first part to make sure that there are no "not found" dependencies. BTW i checked this for libmozjs.so. I got the following list and didnot get any "not found" types,

Code:

[home@harrys]./run-mozilla.sh `which ldd` -r /usr/lib/xulrunner-1.9/libmozjs.so
        linux-gate.so.1 =>  (0x00110000)
        libpthread.so.0 => /lib/libpthread.so.0 (0x0067b000)
        libm.so.6 => /lib/libm.so.6 (0x00649000)
        libdl.so.2 => /lib/libdl.so.2 (0x00674000)
        libplds4.so => /lib/libplds4.so (0x04078000)
        libplc4.so => /lib/libplc4.so (0x0407d000)
        libnspr4.so => /lib/libnspr4.so (0x04084000)
        libc.so.6 => /lib/libc.so.6 (0x004de000)
        /lib/ld-linux.so.2 (0x004be000)

could not figure out properly what they are trying to make us do @the_mozilla_page you mentioned, can you please help me what to check next? or what is the next step? Thank you very much.

mogrady · 11-13-2008, 09:58 PM

I downloaded the latest FF build, 3.0.4 from instructions on the site below. Maybe trying the same method with FF 3.x might help solve the problem. Might have to completely uninstall the current version you have.

https://help.ubuntu.com/community/FirefoxNewVersion

Good luck, MIchael

harry2006 · 11-16-2008, 10:57 PM

my special thanks to all you guys! all of you helped me a lot.
i updated my system and voila FF is working fine, BTW still i dont know whatz the issue,
@mogrady, thank you, i went thru that tutorial , a nice step by step explanation of installing FF.Thank you.

alisson.gomesc · 02-28-2009, 04:52 PM

I have same problem after update fedora 9 to fedora 10.

The solution was:

# yum search mozilla
...
xulrunner.i386 : XUL Runtime for Gecko Applications
xulrunner.x86_64 : XUL Runtime for Gecko Applications
xulrunner-devel.i386 : Development files for Gecko
...

# yum install xulrunner.x86_64

Read!

seven9 · 04-06-2011, 02:49 PM

I know that this post is more than 6 months old, but "Couldn't load XPCOM" error have made me crazy! I have found the solution and I want to share with you. The error was in the LD_LIBRARY_PATH environment variable. It lacks the path to /usr/lib. Add this path to the variable and everything should work.

I have found the solution on this site http://discovolante.altervista.org/e...ad-xpcomq.html

Hope this will help someone else