- Quit Mozilla. If you have Quick Launch running (in Windows, an icon in the toolbar), quit that too.
- Find your Mozilla profile directory. On Windows, this is often located in
c://WINNT/Profiles/<your Windows login>/Application Data/Mozilla.
- Open the
user.jsfile from that directory in a text editor. If there’s no
user.jsfile, create one.
Add these lines to
<font size="1">user_pref("capability.policy.policynames", "allowclipboard");
- Save the file, and restart Mozilla. The Clipboard buttons should now function.
Shutdown Firefox and then do as instructed above.However in Linuxthe Firefox preferences folder is in a different place, mine is locatedin /home/$username/.mozilla/firefox/defaultthen locate the prefs.js and add the lines from above to the bottom ofthe file. I didn’t need to create or add a user.js to my installationfor the problem to cease but perhaps you may.