About Firefox copy/paste
To protect user security, Firefox prohibits the copy/paste operation in some text editors (such as IFRAME). Firefox will direct you
Http://www.mozilla.org/editor/midasdemo/securityprefs.html
I encountered this problem on blogbus and wrote down my solution:
I am using a Linux operating system,
1. First find the installation directory of Firefox:/root/. Mozilla/Firefox/***. Default/
2. Search for user. js in this directory. If no, create a new user. js file.
3. Add the following in user. JS:
User_pref ("capability. Policy. policynames", "allowclipboard ");
User_pref ("capability. Policy. allowclipboard. sites", "http://www.blogbus.com ");
User_pref ("capability. Policy. allowclipboard. clipboard. cutcopy", "allaccess ");
User_pref ("capability. Policy. allowclipboard. clipboard. Paste", "allaccess ");
OK. Restart Firefox to copy and paste the file at will.