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)
Export your Yahoo Contacts. If you want to add your Yahoo Contacts to a different account, or use them on a device that doesn't support CardDAV, you can export them to a .csv or .vcf file. Once you've exported your Yahoo Contacts, you can import them to almost any other email program.o export your contacts, you'll need to log into your Yahoo Mail account from a Yahoo supported browser. Important: Contacts imported from Facebook won't be exported. 1  Click the Contacts icon.