Auto check for updates to: Installed Add-ons not working and missing options

[John Hook]

Binary package hint: firefox-3.5

Edit -> Preferences -> Advanced -> Update ->
Automatically check for updates to: Installed Add-ons - not working
and the following options are missing:

'When updates to Firefox are found:"
     "Ask me what I want to do"
     "Automatically download and install the update"
     "Warn me if this will disable any of my add-ons"

Expected Behaviour:

When "Automatically check for updates to: Installed Add-ons" is selected and
updates are found, depending on what options are meant to be
selected in "When updates to Firefox are found:" Firefox should on next start,
provide a notification or perform an install, and then request a restart

Current Behaviour:

No automatic checks, no notifications or prompts for installation,
no update options available.
No indication that the feature is working at all.

System:

Firefox/Shiretoko 3.5.4+nobinonly-0ubuntu0.9.04.1

Linux kubuntu 2.6.28-16-generic #55-Ubuntu SMP
Distributor ID: Ubuntu
Description: Ubuntu 9.04
Release: 9.04
Codename: jaunty

x86 architecture

Plugins: Default Plugin, Demo print plugin, Shockwave Flash 10.0 r32
Add-ons: NoScript 1.9.9.11

Notes:

Same behaviour & missing options in
Firefox/Shiretoko 3.5.3+nobinonly-0ubuntu0.9.04.1

Same behaviour in Firefox 3.0.14+nobinonly-0ubuntu0.9.04.1 &
Firefox 3.0.15+nobinonly-0ubuntu0.9.04.1,
except that the 'When updates to Firefox are found:" text & options
are visible but unalterable ("greyed out")

Selecting "Tools -> Add-ons -> Find updates" functions correctly and updates
can be installed.