Firefox cannot install or upgrade extensions

[David D Short]

Binary package hint: firefox-3.5

I upgraded to Karmic Koala the other day, and Firefox became unable to install extensions.

See forum posts discussing the problem:
http://ubuntuforums.org/showthread.php?p=8260916
http://www.uluga.ubuntuforums.org/showthread.php?t=1287367

ProblemType: Bug
Architecture: amd64
Date: Sat Nov 7 12:39:10 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: nvidia
Package: firefox 3.5.4+nobinonly-0ubuntu0.9.10.1
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_GB:en
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: firefox-3.5
Uname: Linux 2.6.31-14-generic x86_64

[Micah Gersten (micahg)]

Thank you for reporting this to Ubuntu. Sometimes Firefox profiles can become corrupt and/or extensions can conflict. Could you please try this with a new profile and see if the problem still exists? You do not need to delete your old profile to test. If this helps, you might want to try to disable all your extensions and re-enable them one by one until you find the problematic one.

You can start the profile manager with the following command:
firefox -ProfileManager

[David D Short (chameleondave)]

Already tried that.

[Micah Gersten (micahg)]

Do you have the apparmor profile enabled for Firefox?

[David D Short (chameleondave)]

I’d never heard of AppArmor, so I did ‘sudo apt-get purge apparmor’ to make sure I didn’t have it.

Still doesn’t work.

[Micah Gersten (micahg)]

Ok, you don't want to purge apparmor, as it is one of the security measures in Ubuntu. Please try reinstalling firefox-3.5 and xulrunner-1.9.1

[David D Short (chameleondave)]

OK, I’ve reinstalled AppArmor, not that I noticed any difference to anything without it.

I reinstalled the other packages.

I’ve just been able, after a long wait, to get to the download phase. However, I then get the message:

‘Firefox could not install the file at

https://addons.mozilla.org/downloads/file/62432/foxyproxy-2.14-fx+sm+tb.xpi?src=api

because: Download error
-228’

Actually, I’ve just noticed that I cannot download the above file even with wget or Chromium!

[Micah Gersten (micahg)]

Do you have a proxy on your network? If you can't download the files with wget, it's not Firefox blocking the downloads.

[David D Short (chameleondave)]

No.

<Sigh> I give up.

[Launchpad Janitor (janitor)]

[Expired for firefox-3.5 (Ubuntu) because there has been no activity for 60 days.]