<div dir="ltr"><div>We've prepared an article that goes into the change in more detail:</div><div><br></div><div><a href="https://docs.google.com/document/d/1U0gcwo0IUQntq4Aqz62FLb1Apl9P_0SEG-MMto2OGfw/edit#">https://docs.google.com/document/d/1U0gcwo0IUQntq4Aqz62FLb1Apl9P_0SEG-MMto2OGfw/edit#</a></div><div><br></div><div>Mike<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Jun 26, 2019 at 1:22 PM Copus, Scott <<a href="mailto:scott.copus@wku.edu">scott.copus@wku.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">Is there already a very detailed technical article or dev blog documenting these proposed Firefox downgrade-protection & profile-per-installation changes? It
sounds like the details of these changes are needed for some admins to ascertain if this will impact their environment or not.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">Can we get a basic rundown of how profile migrations have historically functioned before? That should help paint a better picture at least for me. Is this how
it works now? … After an admin upgrades Firefox, do all the users’ profiles on that system get “upgraded” to that profile version upon those users launching Firefox the first time? I assume that Firefox also has to maintain multiple profile version migration
paths in its installers? If not how is upgrading profiles to version X from X-1, X-2, X-3, X-10 all work? If this is already documented somewhere, please point me there.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">Would anyone be able to provide sample scenarios that someone would be able to walk us through that would tell us what’s changing “under the hood” and what settings
(environment variables, group policies, prefs, etc) are available to change its behavior? For example, after Firefox gets upgraded from X to Y (leaving only a single installation afterwards), do any user profiles get modified then—or only at user launch (and
what happening logically under the hood)? Other scenarios would be downgrade, side-by-side installs of multiple versions and channels.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">If an admin decides to activate the environment variables disabling these features “later on down the road”, and a user already has multiple profiles, what’s
Firefox behavior in this regard—how does it know which profile it should use upon next startup?<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">Are there going to be any separate profile tools or switches to help with profile “cleanup” or any helpful functions related to these changes?<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></p>
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<p class="MsoNormal"><span style="font-size:10pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">--<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">Scott Copus, Desktop Support Systems Engineer<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)">Information Technology Services | Western Kentucky University<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:10pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"><a href="https://www.wku.edu/its" target="_blank"><span style="color:rgb(5,99,193)">https://www.wku.edu/its</span></a>
<u></u><u></u></span></p>
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<p class="MsoNormal"><span style="font-size:11pt;font-family:"Calibri",sans-serif;color:rgb(31,73,125)"><u></u> <u></u></span></p>
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<p class="MsoNormal"><b><span style="font-size:11pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11pt;font-family:"Calibri",sans-serif"> Enterprise [mailto:<a href="mailto:enterprise-bounces@mozilla.org" target="_blank">enterprise-bounces@mozilla.org</a>]
<b>On Behalf Of </b>Mike Kaply<br>
<b>Sent:</b> Wednesday, June 26, 2019 11:06 AM<br>
<b>To:</b> Klaus Hartnegg <<a href="mailto:hartnegg@gmx.de" target="_blank">hartnegg@gmx.de</a>><br>
<b>Cc:</b> Mozilla.org <<a href="mailto:enterprise@mozilla.org" target="_blank">enterprise@mozilla.org</a>><br>
<b>Subject:</b> Re: [Mozilla Enterprise] Downgrade Protection and Profile Per Installation in Firefox 68<u></u><u></u></span></p>
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<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal" style="text-align:center;line-height:12pt;background:rgb(255,235,156) none repeat scroll 0% 0%" align="center">
<b><span style="font-size:10pt;color:rgb(156,101,0)">** This message originated from outside WKU. Always use caution following links. **</span></b><u></u><u></u></p>
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<p class="MsoNormal">Firefox will only create a new profile if it determines that the install directory has changed from the previous Firefox that used this profile. So if you have Firefox installed in two different directories, they will use two different
profiles.<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">New versions of Firefox will not create new profiles since they use the same install directory.<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">Mike<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p>
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<p class="MsoNormal">On Wed, Jun 26, 2019 at 5:32 AM Klaus Hartnegg <<a href="mailto:hartnegg@gmx.de" target="_blank">hartnegg@gmx.de</a>> wrote:<u></u><u></u></p>
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<blockquote style="border-color:currentcolor currentcolor currentcolor rgb(204,204,204);border-style:none none none solid;border-width:medium medium medium 1pt;padding:0in 0in 0in 6pt;margin-left:4.8pt;margin-right:0in">
<p class="MsoNormal">What do you mean with new profile per install?<br>
Will the version number become part of the name of the profile directory?<br>
Or will it do the same guid-madness that already causes Windows to forget Firefox as default-browser with each update?<br>
<br>
Will Firefox compare on each start its version with the one in the profile directory, and if its own version is higher then trigger a migration to a new profile directory? Using the newest of the existing ones as source?<br>
<br>
Does this only affect the directory in appdata, or also in localappdata?<br>
<br>
What will happen with all the old directories? They already consume a lot of disk space.<br>
<br>
<br>
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