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Update regarding addons not working in Firefox

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Starbuck

Admin & Security Team
Joined
Feb 19, 2010
Location
Midlands, UK
PC Experience
Very Experienced
Late on Friday May 3rd, we became aware of an issue with Firefox that prevented existing and new add-ons from running or being installed.
We are very sorry for the inconvenience caused to people who use Firefox.

Our team has identified and rolled-out a fix for all Firefox Desktop users on Release, Beta and Nightly.
The fix will be automatically applied in the background within the next few hours.
No active steps need to be taken to make add-ons work again.

Please note: The fix does not apply to Firefox ESR or Firefox for Android.
We’re working on releasing a fix for both, and will provide updates here and on social media.

To provide this fix on short notice, we are using the Studies system.
This system is enabled by default, and no action is needed unless Studies have been disabled.
Firefox users can check if they have Studies enabled by going to:
  • Firefox Options/Preferences -> Privacy & Security -> Allow Firefox to install and run studies (scroll down to find the setting)
Source:
Update Regarding Add-ons in Firefox
 

AWS

Joined
May 17, 2009
Location
Illinois U.S.A.
PC Experience
Elite PC Guru
I got hit by this. I still don't have all the addons I used working.
 
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Starbuck

Admin & Security Team
Joined
Feb 19, 2010
Location
Midlands, UK
PC Experience
Very Experienced
Mozilla has issued a public apology after the certificate blunder that caused Firefox extensions to be disabled, revealing that it plans to delete all telemetry data that it collected when shipping the initial fix.

The company blames “an implementation error in one system” as the reason add-ons were disabled, explaining that while the issue has already been fixed now, “we will be working to refine these systems so similar problems do not occur in the future.”

Mozilla goes on to reveal that while it collected usage data as part of the Studies program, which it used to deliver the emergency fix, it now wants to delete it completely from its servers.

“In order to respect our users’ potential intentions as much as possible, based on our current set up, we will be deleting all of our source Telemetry and Studies data for our entire user population collected between 2019-05-04T11:00:00Z and 2019-05-11T11:00:00Z,” Mozilla says.

Some users joined the Studies program only to get the fix on their devices, and Mozilla says that everyone should check their settings before it’s being re-enabled, “will happen sometime after 2019-05-13T16:00:00Z.”
Mozilla to Delete Firefox Telemetry Data Collected After Certificate Blunder
 
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