Bug 1706311

Summary: Cannot install new addons for firefox: "Download failed. Please check your connection."
Product: [Fedora] Fedora Reporter: Yannick Defais <sevmek>
Component: firefoxAssignee: Gecko Maintainer <gecko-bugs-nobody>
Status: CLOSED DUPLICATE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: unspecified    
Version: 30CC: 0xalen+redhat, anto.trande, gecko-bugs-nobody, jhorak, john.j5live, kengert, piotrdrag, pjasicek, rhughes, rstrode, sandmann
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Hardware: x86_64   
OS: Linux   
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Last Closed: 2019-05-04 22:07:00 UTC Type: Bug
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Description Flags
Exemple of failed to install addon for firefox
none
Failed from a file .xpi none

Description Yannick Defais 2019-05-04 08:14:38 UTC 
Created attachment 1562984 [details]
Exemple of failed to install addon for firefox

Description of problem:
Since my upgrade to Fedora 30, Firefox is unable to install a new addon.
Every time I tried it fails with this error on the web page : "Download failed. Please check your connection." (see screen shot attachment)

Version-Release number of selected component (if applicable):
firefox-66.0.3-1.fc30.x86_64

How reproducible:
always

Steps to Reproduce:
1. Go to https://addons.mozilla.org/
2. Select any addon you want
3. Click the "+ add to Firefox" blue button

Actual results:
A red banner appears : "Download failed. Please check your connection."

Expected results:
The addon will properly install.

Additional info:
Comment 1 Yannick Defais 2019-05-04 08:43:47 UTC 
I tried to install from a file "duckduckgo_privacy_essentials-2019.4.26-an+fx.xpi" I get from https://addons.mozilla.org/firefox/downloads/latest/duckduckgo-for-firefox/addon-385621-latest.xpi (on this page: https://duckduckgo.com/app )

It fails with a pop-up saying :
"about:addons
This add-on could not be installed because it appears to be corrupt.
OK!"
(see attachment for a screen shot)
Comment 2 Yannick Defais 2019-05-04 08:44:24 UTC 
Created attachment 1562985 [details]
Failed from a file .xpi
Comment 3 Yannick Defais 2019-05-04 09:14:07 UTC 
This issue seems related to this upsteam bug:
All extensions disabled due to expiration of intermediate signing cert
https://bugzilla.mozilla.org/show_bug.cgi?id=1548973

"Mozilla Add-ons
‏ @mozamo
We’re investigating an issue with a certificate which may cause your @firefox extensions to stop work working or fail to install. 

Our team is actively working to fix the issue and we’ll post more information shortly.
6:21 PM - 3 May 2019"
https://twitter.com/mozamo/status/1124484255159971840
Comment 4 Yannick Defais 2019-05-04 21:44:07 UTC 
More infos here:
https://blog.mozilla.org/addons/2019/05/04/update-regarding-add-ons-in-firefox/
Especially a fix is distributed within Firefox through "studies" which needs to be enabled in preferences.
Comment 5 Piotr Drąg 2019-05-04 22:07:00 UTC 

*** This bug has been marked as a duplicate of bug 1706295 ***