We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

How do I deploy an add-on to an existing profile?

more options

I wrote a Firefox add-in to to be deployed by an external Windows application. Up to now, the application has deployed the add-on by copying it into the active profile.

With compulsory add-on signing, I rebuilt my add-on with jpm and had it signed by Mozilla. It is now a valid add-on that I can install as a Firefox user. However, dropping the add-on into the Extensions directory of the profile no longer results in it being installed and enabled when Firefox restarts.

I have looked at as many articles and forum posts as I can find, but most of them are out of date. I assume that something has changed in recent versions of Firefox that prevents deployment by this method. What I require is a way of delivering the add-on without inconveniencing users. I am not particularly interested in users in removing the add-on as it is designed to be helpful!

Could somebody point me to the information on how to do this with Firefox 45?

I wrote a Firefox add-in to to be deployed by an external Windows application. Up to now, the application has deployed the add-on by copying it into the active profile. With compulsory add-on signing, I rebuilt my add-on with jpm and had it signed by Mozilla. It is now a valid add-on that I can install as a Firefox user. However, dropping the add-on into the Extensions directory of the profile no longer results in it being installed and enabled when Firefox restarts. I have looked at as many articles and forum posts as I can find, but most of them are out of date. I assume that something has changed in recent versions of Firefox that prevents deployment by this method. What I require is a way of delivering the add-on without inconveniencing users. I am not particularly interested in users in removing the add-on as it is designed to be helpful! Could somebody point me to the information on how to do this with Firefox 45?

All Replies (1)

more options

In general, I don't think that many of the volunteers on this forum will be able to provide you the information that you require.

You might have more luck if you get in touch with some developers on the Mozilla Developer Network.