Extensions disappeared after updating to v.28

[Barabapz]

After updating to v. 28 alla the installed extensions disappeared from the extension mannager where it says there are 29 extensions, 0 enabled and 0 disbled. They are however present and working, but I'm unable to see, customize or uninstalling them.
Please help.
Thank you in advance.

[lamlam]

Hello,
I got the same problem.
Operating system: Windows 7 Professional 64bit
Browser version: 28.0
32-bit or 64-bit?: 64
Problem URL:
Theme: Npne, Noia, others which I can't select because all addons are invisible
Installed extensions: Too many
Installed plugins:

Microsoft Office 2013

File: NPSPWRAP.DLL
Path: C:\PROGRA~1\MICROS~2\Office15\NPSPWRAP.DLL
Version: 15.0.4514.1000
State: Enabled
The plugin allows you to have a better experience with Microsoft SharePoint

MIME Type Description Suffixes
application/x-sharepoint SharePoint Plug-in for Firefox
application/x-sharepoint-uc
Java(TM) Platform SE 8 U151

File: npjp2.dll
Path: C:\Program Files\Java\jre1.8.0_151\bin\plugin2\npjp2.dll
Version: 11.151.2.12
State: Enabled
Next Generation Java Plug-in 11.151.2 for Mozilla browsers

MIME Type Description Suffixes
application/x-java-applet Java Applet
application/x-java-bean JavaBeans
application/x-java-vm
application/x-java-applet;version=1.1.1
application/x-java-bean;version=1.1.1
application/x-java-applet;version=1.1
application/x-java-bean;version=1.1
application/x-java-applet;version=1.2
application/x-java-bean;version=1.2
application/x-java-applet;version=1.1.3
application/x-java-bean;version=1.1.3
application/x-java-applet;version=1.1.2
application/x-java-bean;version=1.1.2
application/x-java-applet;version=1.3
application/x-java-bean;version=1.3
application/x-java-applet;version=1.2.2
application/x-java-bean;version=1.2.2
application/x-java-applet;version=1.2.1
application/x-java-bean;version=1.2.1
application/x-java-applet;version=1.3.1
application/x-java-bean;version=1.3.1
application/x-java-applet;version=1.4
application/x-java-bean;version=1.4
application/x-java-applet;version=1.4.1
application/x-java-bean;version=1.4.1
application/x-java-applet;version=1.4.2
application/x-java-bean;version=1.4.2
application/x-java-applet;version=1.5
application/x-java-bean;version=1.5
application/x-java-applet;version=1.6
application/x-java-bean;version=1.6
application/x-java-applet;version=1.7
application/x-java-bean;version=1.7
application/x-java-applet;version=1.8
application/x-java-bean;version=1.8
application/x-java-applet;jpi-version=1.8.0_151
application/x-java-bean;jpi-version=1.8.0_151
application/x-java-vm-npruntime
application/x-java-applet;deploy=11.151.2
application/x-java-applet;javafx=8.0.151
Java Deployment Toolkit 8.0.1510.12

File: npdeployJava1.dll
Path: C:\Program Files\Java\jre1.8.0_151\bin\dtplugin\npdeployJava1.dll
Version: 11.151.2.12
State: Disabled (STATE_VULNERABLE_NO_UPDATE)
NPRuntime Script Plug-in Library for Java(TM) Deploy

MIME Type Description Suffixes
application/java-deployment-toolkit
Adobe Flash

File: NPSWF64_29_0_0_171.dll
Path: C:\Windows\system32\Macromed\Flash\NPSWF64_29_0_0_171.dll
Version: 29.0.0.171
State: Enabled
Shockwave Flash 29.0 r0

MIME Type Description Suffixes
application/x-shockwave-flash Adobe Flash movie swf
application/futuresplash FutureSplash movie spl
Fire IE DLL

File: npfireie64.dll
Path: C:\Users\XXX\AppData\Roaming\Moonchild Productions\Pale Moon\Profiles\qn8oovrx.XXX\extensions\fireie@fireie.org\plugins\npfireie64.dll
Version: 1.4.6.2
State: Enabled
Fire IE DLL

MIME Type Description Suffixes
application/fireie

[Cassette]

I'm wondering if it might be a theme issue. I can see addon icons, but no labels. Can you try some of the other themes to see if that changes anything?

[therube]

Restart in Safe Mode disables themes.
Might tell you something .

(And I believe it is a known issue that [some] themes may need updates to be [fully] usable.)

[Barabapz]

I have no theme enabled.
Restarting in safe mode brings back some extensions icons an nothing more.
I'm stuck...

[JustOff]

1. Go to about:support, click "Open Folder" to get into your profile
2. Close the browser
3. Make a backup of your profile folder somewhere
4. If there is the chrome folder in the original profile, remove it
5. Start the browser, and if the problem still exists, continue to the next step
6. Close the browser
7. Remove the extensions folder with all its content
8. Start the browser and make sure about:addons works as it should
9. Create the extensions folder and add your add-ons from the backup profile one by one, restarting the browser at each step

[lamlam]

I'll follow your instructions, just wanted to add that when the problem first appeared (after the update to 28.0), there were no themes at all. I stopped using themes when Pale Moon got completely separated from Firefox. Only today I installed a couple and now using Noia but as visible in the screen cap I added, no info about any add-on is visible.

[Lootyhoof]

It looks to be "Addons Manager Fix". Evidently not quite the fix people want...

Remove that when in safe mode and the issue should stop.

[lamlam]

Removing "Addons Manager Fix" solved the problem.
Thanks.

[Barabapz]

I confirm. After removal of "Addons Manager Fix" everything is back to normal.
Thanks for the hint.