Introduction to Sign In and Out
To sign in to SharePoint, you need to use an internet browser. SharePoint will work in most browsers (Internet Explorer, FireFox, Chrome, etc), but because it is a Microsoft product, SharePoint works the best in Internet Explorer (the Microsoft browser). If you use a different browser, although you will be able to update your web sites, you will run in to functionality issues.
For the best editing experience in SharePoint, use Internet Explorer as your browser.
You must be granted permission to edit a SharePoint site. If you have not already been granted permissions to the web site you need to edit, contact the site owner for your site or firstname.lastname@example.org and request permissions.
See the Permissions job aid for more information about permissions.