Error -210 when installing on FF

theBond · Joined: 09 Jan 2009 Posts: 4

When I install the toolbar on FF I get this message:
Title: Javascript application
Message: An error occured: -210

Can you please assist? Thanks.

Admin · Site Admin Joined: 22 Aug 2006 Posts: 1010

In mostly cases, it means your .xpi is not accessible on the server.

Please, check the settings of .xpi file on your server to be readable for all users. The URL to your .xpi should be accessible.
You may also add MIME TYPE ON IIS http Headers like:

extension: .xpi
MIME TYPE: application/x-xpinstall