I have a MacBook Air (Mojave, 10.14.6) and for Testing reasons I need to be able to have several instances of firefox running with different profiles each. At the same time.
How can I achieve this?
7
-
Different user accounts and switch between them?– Solar MikeCommented Mar 20, 2020 at 8:39
-
I need two instances of firefox running. Like in one window (the thing I can change position with, with the red-yellow-green dots on the upper left) a firefox instance with profile1 is running, and in a different window a firefox instance with profile2 is running. At the same time.– AlexCommented Mar 20, 2020 at 8:53
-
you can copy one in a folder and run one from DMG. not sure if they can make different folders in ~/Library/Cache.– ankiCommented Mar 20, 2020 at 10:28
-
What do you mean to copy "one" into a folder? One what? And what is a DMG?– AlexCommented Mar 20, 2020 at 10:35
-
I believe there is a way to run several copies of app, generally, by making copies of the app. I got an error with firefox. Maybe if you use a different profile in the command line, you would have success. You select what profile you want to by starting firefox from the command line. developer.mozilla.org/en-US/docs/Mozilla/Command_Line_Options command line options: /Applications/Firefox.app/Contents/MacOS/firefox --help– historystampCommented Mar 20, 2020 at 22:02
|
Show 2 more comments
1 Answer
If you mean launching a new instance via Terminal, you can use this:
/Applications/Firefox.app/Contents/MacOS/firefox -no-remote -P "NAME_OF_YOUR_PROFILE"
If you just use the -p option it should open the Profile Manager which should let you select a profile via the GUI, but was always buggy for me (broken blank tabs).
More documentation on the firefox command line options can be found here.
-
Note that if the profile name doesn't exist yet, Firefox won't create it automatically. It will show the profile picker GUI, and you can create a new profile. If you pass the name of an existing profile, Firefox will load it, even with
-Pspecified. As to what--no-remotedoes exactly, it's somewhat complicated. Commented Jul 2, 2023 at 18:33