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 In the Open category, click Import. 2  In the Import and Export Wizard, click Import from another program or file, and then click Next. 3  Click Outlook Data File (.pst) , and then click Next. 4  Type the path and the name of the .pst file that you want to import, or click Browse to choose the file to import. In the Import and Export Wizard, click Export to a file, and then click Next. 2  Click Outlook Data File (.pst) , and then click Next. 3  Select the folder to export, and then click Next. 4  Click Browse, and then select the location where you want the new .pst file to be saved.