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)
1 Go to File tab, navigate to Open, and click Import. 2  In the Import And Export Wizard, select Export to a file option and hit Next. 3  Under File Type, select Outlook Data File(.pst) and hit Next. Under File Type, select Outlook Data File(.pst) and hit Next. 2  Now make sure Include subfolder is checked, this makes sure that all data including, Emails, Calendar, Contacts, Drafts, etc are exported. 3  To export only Inbox and Sent folders, choose Inbox and Sent folders and hit Next.