This add-on is compatible with Firefox 37+ and Firefox OS 1.1. To test apps with Firefox OS 1.2+, please use WebIDE built into Firefox! For more info, see the WebIDE MDN documentation. This add-on is large (50-70MB), because it bundles a complete simulation of Firefox OS, including its default apps.
Best Answer: With the all-new Yahoo Mail, there is no option to import pst files. However, in the Yahoo Mail Classic the only thing you can import are contacts in the address books. Here are the steps to do import/export of contacts: 1. Choose a program to import contacts from: Yahoo! (.CSV file)
Yahoo Mail lets you send a copy of your email to Windows Live Mail, where you can sync all of your accounts under 1 app or read and draft messages offline. Just perform an easy configuration process to get started. 1  Enable POP in Yahoo Mail. 2  From Windows Live Mail, click Tools | select Accounts.