Seller Auto Reply for Firefox
Install the Mozilla-signed extension directly from us and receive future releases automatically.
Open this page in Firefox to install the extension.
Already installed? No action is required
- Firefox recognizes the Seller release as the same installed extension.
- Your access key, settings, and local extension state remain in place.
- Future signed releases continue through the existing automatic update feed.
The product name changes to Seller Auto Reply after Firefox installs the signed update; you do not need to reinstall or reconnect.
Set up in a few minutes
- 1
Open this page in Firefox
Seller Auto Reply installs directly in Firefox. If you need Firefox first, use the official download below and return to this page.
- 2
Install the signed extension
Choose “Install Seller Auto Reply,” then approve Firefox’s installation prompt. The package is signed through Mozilla’s add-on signing service.
- 3
Open your Facebook Marketplace messages
Sign in to Facebook normally, open your Marketplace messages view, and keep that page open while automated replies are enabled.
- 4
Connect your Seller Auto Reply account
Open the extension from the Firefox toolbar, enter the access key from your dashboard, and enable replies when you are ready.
Using another browser copy?
Keep only one enabled copy watching the same inbox to avoid duplicate replies.