I think you can control the updates with the policy 'ExtensionSettings', 
specifying which xpi should be installed, so when you point the extension to 
the new version xpi it will update, not before. This is how I understood the 
changes in Firefox 78 ESR but I haven't tried yet.

El 19/11/2020 a les 18:35, Mike Kaply ha escrit:
Are there situations where you don't want to update extensions?

Extensions are updated when Firefox is updated and checks are done 
approximately every 24 hours.

Mike

On Wed, Nov 18, 2020 at 9:48 AM Marco Gaiarin <[email protected] 
<mailto:[email protected]>> wrote:


    Sorry, i quick come back because i realize i need more info and feedback.


    Currently i use 'system installed'/sideloaded extensions, and in this
    way i have a strict control on extensions, also on extensions version.


    Using policy i can install some extension, lock them, but i've no
    strict control on extensions versions, eg i have only a 'master
    switch':

            ExtensionUpdate

    to enable or disable extensions update. If i disable it, there's
    effectivaly NO way to update the extensions. If i enabe it, extensions
    get updated automatically.


    If i use '/distribution/extensions' i can install extensions, exactly
    the version i need (and i lock the uninstallation via policy i
    suppose), but updates follow some unknown rules; seems to me:

     + surely at profile creation extensions get installed
     + seems at program upgrade, it is not clear if only for 'major
       versions' or also for minor ones, extensions get 'refreshed'



    Anyway, the real question is: how can i strictly control extensions
    version without 'system instaleld' extensions?


    Thanks.

-- dott. Marco Gaiarin                                     GNUPG Key ID: 240A3D66
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(PN)
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+39-0434-842711   f +39-0434-842797

                    Dona il 5 PER MILLE a LA NOSTRA FAMIGLIA!
    http://www.lanostrafamiglia.it/index.php/it/sostienici/5x1000 
<http://www.lanostrafamiglia.it/index.php/it/sostienici/5x1000>
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