An easier option is to set xpinstall.signature.required to false in about:config

-- 
Simon


Sent from my Samsung Galaxy smartphone.

-------- Original message --------
From: Peter Reutemann <fracpete@waikato.ac.nz>
Date: 5/05/19 9:24 AM (GMT+12:00)
To: wlug List <wlug@list.waikato.ac.nz>
Subject: [wlug] Firefox 66.0.3 disabled all your plugins?

Hi there

I just updated my Firefox to 66.0.3 and all of a sudden, all my
installed plugins were disabled (eg uBlock).

Turns out that the release was buggy and they are working on a fix. In
the meantime, you can get things going again through a trick: by
enabling "participating in studies" you can get access to their hotfix
to remedy this problem (though it can take some time before you get
notified once you enabled this option - up to 6 hours; it only took a
minute for me).

For more information, see the official blog post:
https://blog.mozilla.org/addons/2019/05/04/update-regarding-add-ons-in-firefox/

If you haven't updated to 66.0.3, then I'd strongly advice to wait for
the next version to become available. Will safe you some pain.

Cheers, Peter
--
Peter Reutemann
Dept. of Computer Science
University of Waikato, NZ
+64 (7) 858-5174
http://www.cms.waikato.ac.nz/~fracpete/
http://www.data-mining.co.nz/
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