Firefox 66.0.4 with add-on signing fix release on its way

Mozilla plans to release Firefox to the Stable channel of the online browser quickly; the brand new model fixes the add-on deactivation and signing issue in the browser.

Firefox customers with put in add-ons skilled a irritating and on the identical time unusual difficulty on May four, 2019: Firefox wouldn’t load any add-ons and notify customers that put in add-ons couldn’t be enabled as a result of they may not be verified by the browser.

The difficulty affected all browser extensions no matter ranking or freshness. Even Mozilla’s personal add-ons for Firefox have been affected.

The disabling occurred only a day after Mozilla revealed that it could go after extension policy violations more actively. Some customers assumed that this was the rationale for the disabling of extensions. Turned out, it was not.

The difficulty was brought on by an expired certificates. Firefox couldn’t confirm extensions anymore due to the expiration, and the one recourse of the browser in that case is to disable all extensions that can not be verified.

firefox add-ons disabled

Problem was, the problem didn’t have an effect on only one or two extensions that one way or the other obtained their certificates tousled, it affected all of them.

Mozilla began to distribute a sizzling fix to some Firefox channels, Firefox Stable, Beta and Nightly, however that required that customers had Shield Studies activated. Not all wished that due to privateness implications.

Others distributed Mozilla’s fix on third-party websites in order that anybody might set up it and resolve the problem.


Mozilla began to work on Firefox and updates for different variations of Firefox on the identical time. The new release is already on the server however it isn’t in distribution but.

I do not hyperlink to those releases normally as a result of Mozilla might pull it and push one other closing candidate to customers, however I am making an exception simply this as soon as as a result of the matter has not been resolved for some customers but.

Head over to this deal with and obtain the replace to your system.

The release notes have only one entry: “Repaired certificates chain to re-enable internet extensions that had been disabled”

The replace ought to resolve the problem for Stable channel customers and Android customers who additionally get the replace.

Note: Firefox might show a message on begin that a number of add-ons have been disabled. This occurs if the intermediate patch was put in within the browser.

Only the hotfix-update-xpi-intermediate extension ought to be listed below unsupported. All different extensions ought to be listed below Extensions.


The hotfix extension is not wanted as the problem is resolved within the up to date model of Firefox.

Now Read: What Mozilla needs to do after the incident.

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