can't install add-ons

[Mark A. Hershberger]

Going through the regular FF process of installing add-ons used to work. Before FF4, I was able to install add ons using .xpi packages through FF's UI.

Since FF4 and, now, in FF5, I can't install addons through the UI. It allows me to select an add on, asks me to confirm that I want to install it and, after confirmation, the extension progress bar just sits there with "Installing" but nothing happens.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: firefox 5.0+build1+nobinonly-0ubuntu0.11.04.1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
Architecture: i386
Date: Wed Jun 22 10:26:19 2011
FirefoxPackages:
 firefox 5.0+build1+nobinonly-0ubuntu0.11.04.1
 flashplugin-installer 10.3.181.26ubuntu0.11.04.1
 adobe-flashplugin N/A
 icedtea-plugin N/A
InstallationMedia: Ubuntu-Netbook 10.04 "Lucid Lynx" - Release i386 (20100429.4)
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: firefox
UpgradeStatus: Upgraded to natty on 2011-04-01 (81 days ago)

[Micah Gersten (micahg)]

Thank you for reporting this to Ubuntu. Do you have a specific addon that's causing problems?

[Mark A. Hershberger (hexmode)]

So far, no addon I've tried to add has worked, but the two I've tried repeatedly are firebug and adblock. For fun, I just tried noscript, flashblock, abine, and weatherfox. None worked, but the behavior was always the same.

The progress bar shows it downloading and then switches to "Installing" but the bar then remains grey. Switching from the "Get Addons" to "Extensions" ribbon, each extension shows with the grey "Installing" bar.

After restarting firefox, the previously downloaded extensions are not shown.

Packaged firebug and adblock "work" --- I can see them among the listed extensions, but since they aren't compatible with FF5, they are greyed out.

[Mark A. Hershberger (hexmode)]

Creating a new profile worked. I noticed there was a lot of cruft from old versions and when I started to look at cleaning it up, I just created a new profile and stuff worked. Closing this.