[Mozilla Enterprise] Downgrade Protection and Profile Per Installation in Firefox 68

[Mike Kaply]

With profiles per installation, Firefox uses the install path to determine
if there should be a different profile. So if Firefox 67 and Firefox 68 are
in two different directories, they would use two different profiles.

So if Firefox is started from a different directory than before, it will
create a new profile directory.

You will be able to turn this off with an environment variable.

Mike

On Wed, Jun 26, 2019 at 3:40 AM James Pearson <james-p at moving-picture.com>
wrote:

> Could you explain what is meant by 'profiles per installation' ?
>
> We use Firefox (on Linux) by installing each new release of ESR in a
> separate directory - which is available to all clients over NFS and use a
> wrapper script to select which version to run (by default, it uses the most
> recent version)
>
> With ESR 68 and above, will each of our separate installs require a
> separate profile ? - or does 'installation' in this context mean Nightly,
> Beta, ESR, etc ?
>
> Thanks
>
> James Pearson
>
> ------------------------------
> *From:* Enterprise [enterprise-bounces at mozilla.org] on behalf of Mike
> Kaply [mkaply at mozilla.com]
> *Sent:* 24 June 2019 22:23
> *To:* Jim Weill
> *Cc:* Mozilla.org
> *Subject:* Re: [Mozilla Enterprise] Downgrade Protection and Profile Per
> Installation in Firefox 68
>
> The best explanation is here:
>
> https://groups.google.com/forum/#!topic/mozilla.dev.platform/hVeJSYjSnO4
>
> (although it references Firefox 65 - this landed in Firefox 67)
>
> We blogged about it here as well:
>
>
> https://blog.nightly.mozilla.org/2019/01/14/moving-to-a-profile-per-install-architecture/
>
> Support info for profiles per installation is here:
>
>
> https://support.mozilla.org/en-US/kb/dedicated-profiles-firefox-installation
>
> Mike
>
>
> On Mon, Jun 24, 2019 at 2:09 PM Jim Weill <moondog at icsi.berkeley.edu>
> wrote:
>
>> Is there a page with details on how these new features work?  I don't
>> know enough about the proposals to know whether we are affected.
>>
>> jim
>>
>> On Mon, Jun 24, 2019 at 1:40 PM Mike Kaply <mkaply at mozilla.com> wrote:
>>
>>> With Firefox 68 two new features are being added; dedicated profiles per
>>> Firefox installation and downgrade protection. These allow for simpler
>>> on-boarding of beta and nightly users and also prevent users from hitting
>>> profile corruption issues when switching between different
>>> versions/channels of Firefox.
>>>
>>> Environment variables will be available in Firefox 68 to disable both
>>> features and we are assessing whether this will be enough for ESR users to
>>> maintain compatibility with their custom deployment configurations.
>>>
>>> It would be great if you could let us know of specific issues related to
>>> these features that an environment variable would not allow addressing.
>>>
>>> Thanks for your input.
>>>
>>> Mike Kaply
>>>
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