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)
In order to export or import mailboxes to PST files the following requirements must be met: 1  Export or import to PST must be run from a 32-bit client computer with Exchange Management Tools installed (Exchange 2007 SP1 or later versions). 2  The 32-bit requirement comes from a dependency with the Outlook client.