Search notes:

~/.mozilla/firefox/profiles.ini

The profiles.ini file for Firefox in a Linux installation.

[General]
StartWithLastProfile=1

[Profile0]
Name=default
IsRelative=1
Path=abcd5678_default
Default=1

StartWithLastProfile=1 indicates that the profile with Default=1 should be started. StartWithLastProfile=0 would cause Firefox to ask the user which profile should be used.

IsRelative=1 indicates that the profile folder is below the folder in which the profiles.ini file is found.

Installation of 2020-09-05 (Windows)

After a fresh installation on Windows (2020-09-05), I found this profiles.ini file:

[Install308046B0AF4A39CB]
Default=Profiles/811jxeb3.default-release
Locked=1

[Profile1]
Name=default
IsRelative=1
Path=Profiles/q411pdtw.default
Default=1

[Profile0]
Name=default-release
IsRelative=1
Path=Profiles/811jxeb3.default-release

[General]
StartWithLastProfile=1
Version=2

TODO

Apparently, the same format is also used as profiles.ini file for Thunderbird and SeaMonkey.

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