Conversion of crx files to xpi file format

Unfortimately, it's not that simple to actually convert extensions / plugins / add-ins from one web browser to another, for example from Chrome (.crx) to Firefox (.xpi). Nevertheless, tools like the crx-to-xpi can be used to port crx version of some addon to XPI format.

Open CRX file    Open XPI file

Related software

crx-to-xpi

A Chrome to Firefox extension converter