Firefox Copy/Paste settings

In Xopus 4.2.5 the Copy/Paste functionality was improved with a signed script. When using Firefox, and using Copy/Paste functionality. Xopus will show a security dialog:

In order to be able to paste from outside Xopus into Xopus, you will have to press allow in this dialog.

You can also check the option to remember this decision to save your preference, if you do not want to see this dialog whenever you copy or paste when workgin with Firefox. The setting is then remember in prefs.js, a file in your Firefox profile.

Removing the client preference setting

To remove the setting you will have to find prefs.js. On Windows this file is located in:

{drive-letter}:\Documents and Settings\
{user-name}\Application Data\Mozilla\Firefox\Profiles\{profile-name}\prefs.js

On Mac OS-X the following

/Users/{user-name}/Application Support/Firefox/Profiles/{profile-name}/prefs.js

This location may differ per operating system.

Look for the following lines and remove them:

user_pref("capability.principal.certificate.p0.granted", "UniversalXPConnect");
user_pref("capability.principal.certificate.p0.id", "A6:E4:A3:71:EE:64:4B:0A:DB:1E:82:48:1F:0C:E2:AF:AF:0B:85:5F");
user_pref("capability.principal.certificate.p0.subjectName", "CN=SDL PLC,O=SDL PLC,L=Berkshire,C=GB");

Then save the file and restart Firefox.

Server setting

For developers, it is important to note that the clipboard.jar file should be served correctly. Some servers will serve this file with a MIME type, or content type of text/plain, but this should be application/java-archive. You can inspect this in Firebug or other HTTP debugging tools.