Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More
Diarkib

How to add my account to Firefox when installing it silently?

Ooker

I want to make an unattended installation of Firefox so when I open it, it will automatically sync with my account, and I don't need to type it again. This [Mozilla Wiki](https://wiki.mozilla.org/Installer:Command_Line_Arguments) gives you information about silent install, but it doesn't say anything about automatically adding my account. On the other hand, this [Mozilla Developer Network](https://developer.mozilla.org/en-US/docs/Mozilla/Command_Line_Options#User_Profile) page shows you how to use Firefox in CLI, but it only tells you how to create a profile, not adding an account. Do you know any way to solve this problem?

I want to make an unattended installation of Firefox so when I open it, it will automatically sync with my account, and I don't need to type it again. This [Mozilla Wiki](https://wiki.mozilla.org/Installer:Command_Line_Arguments) gives you information about silent install, but it doesn't say anything about automatically adding my account. On the other hand, this [Mozilla Developer Network](https://developer.mozilla.org/en-US/docs/Mozilla/Command_Line_Options#User_Profile) page shows you how to use Firefox in CLI, but it only tells you how to create a profile, not adding an account. Do you know any way to solve this problem?

Diubah oleh Ooker

All Replies (1)

Currently there is no command line argument to add a sync account.