[Mozilla Enterprise] Error with using system proxy settings (when changing from using "automatic proxy configuration URL" by default via policies.json)

[Mike Kaply]

You can read more about this here:

https://support.mozilla.org/en-US/kb/understanding-depth-profile-installation

But specifically at the end:

" The downgrade blocking can be bypassed by setting the environment
variable MOZ_ALLOW_DOWNGRADE or by passing the --allow-downgrade command
line argument when running Firefox."

Hopefully this should accomplish what you need.

Alternatively if it is a problem with the new Firefox being installed in a
different directory, you can use the MOZ_LEGACY_PROFILES environment
variable or the LegacyProfiles policy -
https://github.com/mozilla/policy-templates/blob/master/README.md#legacyprofiles

Mike

On Wed, Jul 1, 2020 at 12:04 PM Periard, Eric <Eric.Periard at cyber.gc.ca>
wrote:

> *Classification: UNCLASSIFIED*
>
>
>
> Hello,
>
>
>
> Here’s an interesting situation: We’ve recently created a USMT Windows
> User Profile Backup and Restore package via SCCM and that works fine,
> however there’s a catch 22 with firefox….
>
>
>
> Usually I keep a baseline version of the package via the Software Center
> and the users can update the browser via the ABOUT menu.
>
> However if a windows profile is restored to a new system (with AppData)
> and then firefox is installed from the Software Center, of course it’s old
> and it sees the newer profile as incompatible.
>
> so far the only solution I got is to go ahead and update the baseline
> version of my Firefox package.
>
> So here’s my questions:
>
> 1. Is it possible somehow to load a new profile onto an old Firefox?
> 2. Is it possible to force Firefox to look for updates as soon as someone
> tries to open it?
> 3. If 2. is possible, would it fetch the update before prompting the user
> to create a new profile?
>
> Please advise, this seems to be a none-issue with Chrome post-user mig.
>
> Thanks
>
> Eric
>
>
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