If the Read&Write Firefox add-on has not previously been installed you will be prompted to install the plugin when using Read&Write 7 with Firefox
Please close Read&Write from the Mac menu by quitting before following the steps below
1) Open Firefox and it prompt you to install the extension which is installed with Read&Write.
2 ) You will then be prompted to install the plugin:
Click Install to complete the process
4) Close Firefox from the Mac menu by quitting
5) Restart Firefox and launch Read&Write.Read&Write will now function with Firefox