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Update Update-MozillaFirefox.ps1
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@auberginehill
auberginehill authored Feb 19, 2017
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114 changes: 56 additions & 58 deletions Update-MozillaFirefox.ps1
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Expand Up @@ -1736,47 +1736,45 @@ is found, tries to update Firefox.
Update-MozillaFirefox downloads a list of the most recent Firefox version numbers
against which it compares the Firefox version numbers found on the system and
displays, whether a Firefox update is needed or not. The actual update process
naturally needs elevated rights, and if a working Internet connection is not
found, Update-MozillaFirefox will exit at Step 6. Update-MozillaFirefox detects
the installed Firefox(es) by querying the Windows registry for installed programs.
The keys from
naturally requires elevated rights and a working Internet connection.
Update-MozillaFirefox detects the installed Firefox(es) by querying the Windows
registry for installed programs. The keys from
HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\ and
HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\ are read on 64-bit
computers and on the 32-bit computers only the latter path is accessed. If all
the detected Firefox versions seem to be up-to-date, Update-MozillaFirefox will,
however, exit before checking, whether it is run elevated or not. Thus, if
Update-MozillaFirefox is run in a up-to-date machine in a 'normal' PowerShell
window, Update-MozillaFirefox will just check that everything is OK and leave
without further ceremony.
computers and on the 32-bit computers only the latter path is accessed. When run
in a 'normal' PowerShell window, when all the detected Firefox versions are
up-to-date, Update-MozillaFirefox will just check that everything is OK and leave
without further ceremony at Step 11 (before trying to determine, whether it is run
elevated or not).
Update-MozillaFirefox tries to write several Firefox-related files, namely
"firefox_current_versions.json", "firefox_release_history.json",
"firefox_languages.json" and "firefox_regions.json" in Step 7. If the script has
advanced to the updating phase, in Step 14 an Install Configuration File
(firefox_configuration.ini) is also written to $path.
If Update-MozillaFirefox is run without elevated rights (but with a working Internet
connection) in a machine with an old Firefox version, it will be shown that a
Firefox update is needed, but Update-MozillaFirefox will exit at Step 12 before
actually downloading any files. To perform an update with Update-MozillaFirefox,
"firefox_languages.json" and "firefox_regions.json" at Step 7. If the script
has advanced to the updating phase, at Step 14 an Install Configuration File
(firefox_configuration.ini) is also written to $path, where, for instance, the
automatic Mozilla Maintenance service is disabled and the default shortcuts are
enabled.
If Update-MozillaFirefox is run without elevated rights (but with a working
Internet connection) in a machine with an old Firefox version, it will be shown
that a Firefox update is needed, but Update-MozillaFirefox will exit at Step 12
before downloading any files. To perform an update with Update-MozillaFirefox,
PowerShell has to be run in an elevated window (run as an administrator).
If Update-MozillaFirefox is run in an elevated PowerShell window and no Firefox is
detected, the script offers the option to install Firefox in the "Admin Corner",
where, in contrary to the main autonomous nature of Update-MozillaFirefox, an
end-user input is required for selecting the bit-version and the language. In the
"Admin Corner", one instance of either 32-bit or 64-bit version in the selected
language is installable with Update-MozillaFirefox - the provided language selection
covers over 30 languages.
In the update procedure itself (if an old Firefox version has been found and
Update-MozillaFirefox is run with administrative rights) Update-MozillaFirefox
downloads a full Firefox installer from Mozilla, which is of the same type that
is already installed on the system (same bit version and language). After writing
the Install Configuration File (firefox_configuration.ini in Step 14) and stopping
several Firefox-related processes Update-MozillaFirefox installs the downloaded
Firefox on top of the existing Firefox installation, which should trigger the
in-built update procedure.
If Update-MozillaFirefox is run in an elevated PowerShell window and no Firefox
is detected, the script offers the option to install Firefox in the "Admin Corner"
(step 11), where, in contrary to the main autonomous nature of
Update-MozillaFirefox, an end-user input is required for selecting the bit-version
and the language. In the "Admin Corner", one instance of either 32-bit or 64-bit
version in the selected language is installable with Update-MozillaFirefox
– the language selection covers over 30 languages.
In the update procedure itself Update-MozillaFirefox downloads a full Firefox
installer from Mozilla, which is equal to the type that is already installed on
the system (same bit version and language). After writing the Install Configuration
File (firefox_configuration.ini at Step 14) and stopping several Firefox-related
processes Update-MozillaFirefox installs the downloaded Firefox on top of the
existing Firefox installation, which triggers the in-built update procedure.
.OUTPUTS
Displays Firefox related information in console. Tries to update an outdated Firefox
Expand All @@ -1789,20 +1787,20 @@ The Firefox Install Configuration File (firefox_configuration.ini) is created wi
one active parameter (other parameters inside the file are commented out):
Install Configuration File (in Step 14):
Install Configuration File (at Step 14):
firefox_configuration.ini %TEMP%\firefox_configuration.ini
The %TEMP% location represents the current Windows temporary file folder.
Please see the Notes-section below, how to determine where the current Windows
temporary file folder is located. In PowerShell the command $env:temp displays
the temp-folder path.
In PowerShell, for instance the the command $env:temp displays the temp-folder
path.
To see the actual values that are being written, please see Step 14 above (altering
the duplicated value below won't affect the script in any meaningful way)
To see the actual values that are being written, please see the Step 14 above,
where the following value is written: (altering the duplicated value below won't
affect the script in any meaningful way)
MaintenanceService=false The MozillaMaintenance service is used for silent
Expand All @@ -1822,7 +1820,7 @@ At Step 7 the baseline Firefox version numbers are written to a file
are created, namely:
Firefox JSON Files (in Step 7):
Firefox JSON Files (at Step 7):
firefox_current_versions.json %TEMP%\firefox_current_versions.json
Expand All @@ -1832,9 +1830,8 @@ are created, namely:
The %TEMP% location represents the current Windows temporary file folder.
Please see the Notes-section below, how to determine where the current Windows
temporary file folder is located. In PowerShell the command $env:temp displays
the temp-folder path.
In PowerShell, for instance the the command $env:temp displays the temp-folder
path.
To open these file locations in a Resource Manager Window, for instance a command
Expand All @@ -1850,11 +1847,9 @@ Requires either (a) PowerShell v3 or later or (b) .NET 3.5 or later for importin
and converting JSON-files (at Step 8).
Requires a working Internet connection for downloading a list of the most recent
Firefox version numbers.
Also requires a working Internet connection for downloading a complete Firefox
installer from Mozilla (but this procedure is not initiated, if the system is
deemed up-to-date).
Firefox version numbers and for downloading a complete Firefox installer from
Mozilla (but the latter procedure is not initiated, if the system is deemed
up-to-date).
For performing any actual updates with Update-MozillaFirefox, it's mandatory to
run this script in an elevated PowerShell window (where PowerShell has been started
Expand All @@ -1866,15 +1861,18 @@ than one instances of Firefox are detected, the script will notify the user in
Step 5, and furthermore, if old Firefox(es) are detected, the script will exit
before downloading the installation file at Step 15.
Please also notice that during the actual update phase Update-MozillaFirefox
closes a bunch of processes without any further notice in Step 17 and in Step 14
the Firefox installation configuration file is written, so that the Mozilla
Maintenance service will not be installed during the Firefox update.
Please note that when run in an elevated PowerShell window and an old Firefox
version is detected, Update-MozillaFirefox will automatically try to download files
from the Internet without prompting the end-user beforehand or without asking any
confirmations (in Step 16 and onwards).
Please note that the Firefox installation configuration file written at Step 14
disables the Mozilla Maintenance service so that the Mozilla Maintenance service
will not be installed during the Firefox update. The values set with the Install
Configuration File (firefox_configuration.ini) are altering the system files and
seemingly are written somewhere deeper to the innards of Mozilla Firefox
semi-permanently.
Please also notice that when run in an elevated PowerShell window and an old
Firefox version is detected, Update-MozillaFirefox will automatically try to
download files from the Internet without prompting the end-user beforehand or
without asking any confirmations (at Step 16 and onwards) and at Step 17 closes
a bunch of processes without any further notice.
Please note that the downloaded files are placed in a directory, which is specified
with the $path variable (at line 42). The $env:temp variable points to the current
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